US2871560A - Disposable razor with reinforced head - Google Patents

Description

Feb. 3, 1959 L R. M. EBERBAUGH 2,871,560

DISPOSABLE RAZOR vWITH REENFORCED HEAD lFiled May s. 1954 IN VEN TO ATTORNEYS.

United States Patent 2,871,560 DISPOSABLE RAZOR WITH REINFORCED HEAD .Robert M. Eberbaugh, Charleston, W. Va. Application May 3, 1954, Serial No. 427,291 2 Claims. (Cl. 30e-47) The invention relates to single service disposable razors and has for its objects to provide certain new and useful improvements in implements of this character.

An important object of the invention is to provide a disposable razor which may be integrally constructed of relatively thin paper, plastic or plastic-coated paper, as well as of any other comparative and readily obtainable economical materials, such for example as sheet aluminum.

The sheet materials of which the razor implement is formed may be readily heat sealed to secure the parts in position with suflicient rigidity in respect to the razor and handle, so as to obviate the necessity of employing separate reenforcing wires or other auxiliary materials.

A further object of the invention is to provide a single service razor which may be readily folded from a flat die cut sheet of the character described, and when assembled there is suicient rigidity in the head and handle, as well as between these members, to enable the implement to be used for the purpose designed, after which it may be discarded or thrown away.

The economical single service razor constituting the present invention is preferably die stamped from a plastic sheet having characteristics which adapt it to high frequency sealing, thermo orV heat sealing, or sealing by means of a suitable solvent. A simple folding and scoring process in which the plastic holds the shape of the folded or bent parts, results in a nished razor of small size and having inherent rigidity as a result of the peculiar manner of its integral formation in regard to the head and handle portion. The folded handle is of hollow tubular form, thereby providing adequate rigidity in the handle despite the relatively thin and flexible nature of the sheet material Ifrom which the integral unit is formed. The plastic material withstands hot water when 4the implement is put to use, and the metal blade portion of the razor is preferably :coated with a thin plastic resin in order to form a perfect seal between the blade and the thin plastic sheet of which the razor proper is integrally constructed. Thus when heat is applied the blade is sealed to the plastic sheeting employed to construct the razor.

Numerous other objects and advantages of the instant invention will become apparent as it is better understood from the following description which, taken in conjunction with the accompanying drawings, is illustrative of a preferred embodiment thereof.

In said drawings:

Fig. l is a perspective view of the razor constructed from the integral blank illustrated in Fig. 4.

Fig. 2 is a side view of the razor.

Fig. 3 is a rear view.

Fig. 4 is a plan view of a die-cut paper or plastic blank from which the implement is constructed.

Fig. 5 is a perspective view of the blank in partially folded position in `completing the razor.

Fig. 6 is a transverse section through the handle portion of the razor, taken on the line 6-6 of Fig. 2.

Fig. 7 is a plan view of a die cut blank similarto that ice illustrated in Fig. 4 but showing a slightly modified form of the razor construction.

Referring to Fig. 4, the razor is preferably integrally formed from a rectangular paper, plastic or plastic-coated sheet 1 which is die cut into the configuration illustrated to include a pair of parallel elongated apertures Zhaving a scored fold line 3 midway therebetween. The razor head portion A at the upper end of the blank is set ol by a pair of spaced aligned die-cu-t slits 4 having a scored fold line 5 therebetween which connects the integrally formed razor head and handle.

The lower portion of the blank constitutes the razor handle B which is set off in part by a pair of spaced aligned slits 6, each slit terminating in an inwardly and upwardly scored fold line 7, respectively terminating at opposite ends of thescored fold line 5 connecting the head and handle.

Parallel longitudinal scored fold lines 8 are provided in the handle portion of the razor, toA the end that the handle may be folded in the form of a hollow square having angular walls 9, two of which are overlapped and adhesively'secured together. These overlapped adhesively secured walls are indicated at 9a in Figs. 5 and 6.

The described construction results in the provision between the slits 4 and 6, of a pair of complementary tab members 10 of generally trapezoidal configuration, said tabs being disposed between the handle and head portion of the razor when the latter is bent rearwardly along the scored fold line 5, and each of said tabs is foldablev along one of the inclined -score lines 7 for a purpose to be described.

The thin metal blade of the razor which may be of the Schick type is indicated at 11, and is preferably cemented tothe head portion A2 of the blank adjacent the lower slit 2 which is nearest the razor handle. As illustrated the metal blade 11 is affixed to the head portion so as to partially overlap the lower aperture 2. so lthat when the head portion is completed by folding along the score line 3, the sharp. edge 11a of the blade is confined between the portions A1 and A2 of the head and the blade projects through the uppermost of the elongated reglstenng apertures 2 to the proper extent for shaving purposes.

:The overlapped portions A1 and A2 of the head are suitably cemented or heat sealed together at the rear of the head so as to confine the blade 11 therebetween, and the metal of the blade provides adequate transverse reenforcement of the razor head during packaging and while in use.

After the metal blade member 11 is confined in the razor head portion, the head sheet sections A1 and A2 adhesively secured together, and the hollow tubular handle B has been folded and secured as described, the two complementary tab members 10 are bent or folded outwardly along the score lines 7 and adhesively secured or heat sealed to beneath the subjacent sheet portion A2 of the head, as initially viewed in Fig. 5 and in final form in Figs. 2 and 3. The provision of these integral angularly extending tab members 10 provides adequate reenforcement for the razor head and holds the same rigidly with the handle against pivotal movement or Weaving along the comparatively short score line 5 between the head and handle portions.

Before adhesively securing the tabs 10 beneath the adjacent head portion A2, one outer projecting corner portion of each tab member is cut away and removed` This is to' prevent such tab corner portions, indicated at 10b in Figs. 4 and 5, from extending beneath the registering apertures 2 through which the cutting edge of the blade projects. This will be more readily apparent from an inspection of Fig. 3 of the drawings.

Patented Feb. 3, 1959 heslishtlrmq .d fnrm cf raser integrally Constructed from the sin e die cut blank of Fig. 7, is similar to the form hereinabove described with the exception that .the tab members.- 19a; for, adhesively. conneetng; the handle to the folded head portion are initially die;V cut and formed ofsnbstantially triangular coniiguration, rather than initially of: Substantially trapezoidalshapeas shown in Fig. 4.

The singlel service disposable razor constituting the invention is well adapted; to be pack-aged in a sanitary cellophane, paper or paper board carton; together with a suitable amount of brushless orother shaving/cream, contained in an aluminum foilv orother plastic 0r Paper bag or tube. This isl forthe purpose of permitting the implementto:beV convenientlydispensed in vending machines, for example at transportation terminals, sold over counters, or as a complimentary service of hotels, motels, stearnships and the like.

The described procedure ofv constructing the razor from integral die cut plastic sheet material permits the instant throw-away razor to be practically made from sheets` of plastic such asA polyethylene or from a papersheet coated or impregnated with plastic having characteristics suitable for sealings by present preferred manufacturing methods. Alternately thin aluminum sheets sealed by sweating, crimping or any other means, or any other inexpensive material which is adapted to die stamping, folding and sealing may be employed.

it is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention, or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

What is claimed is:

1. A razor comprising a head and a tubular handle integrally formed of eXible sheet material, and a blade having a cutting edge secured to said head, said head having a pair of parallel elongated apertures and having a reverse fold along a single fold line at one side edge thereof between said apertures to register the apertures and to constitute an integral folded head of double thickness for confining said blade between said thicknesses, said blade projecting at its cutting ledge through one of said apertures adjacent the line of fold of said head, said handle constituting a hollow tube integrally connected to said head by a transverse fold line, and a pair of angularly extended tab members formed integrally with said handle and secured to the under surface of said folded headto rigidify the razor structure.

2. A razor comprising a head member having a pair of parallei. elongated apertures therein and a tubular rectangular handle member integrally formed of die cut exible sheet material, and ya blade having a cutting edge secured to said head member, said head member including upper and lower integral sheet sections substantially paraliei to each other and interconnected along a single line of fold at one side edge of the head member between said apertures to. constitute an integral folded razor head of double thickness for confining said blade between said sheet sections` said blade having its cutting edge projecting through said elongated aperture in said upper sheet section of said'head member adjacent said line of fold, said handle member extending at an angle to said head member and comprising a hollow tube of square cross section havinglongitudinally extending side walls and integrally connected to said head member by a transverse fold line, and a pair of tab members each of substantially trapezoidal configuration formed integrally with and projecting transversely from the upper end of said tubular handle member on opposite sides thereof and secured to the lower sheet section of said head member to constitute a rigid connection between said head member and said handle member.

References Cited inthe ltile of this patent UNITED STATES PATENTS 2,329,692 Auerbach v Sept. 21, 1943 2,405,577 Holder k. g Aug. 13, 1946 2,679,093 Lyon May 25, 1954 2,684,529 Samko s July 27, 1954 2,729,887 Appeldo'rn Ian. 10, 1956

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