Патент USA US2059172код для вставки
Oct. 27, 1936. c. SABIERS A 2,059,172 SAFETELr RAZOR Filed Aug. 12, 1933 i INVENTOR. EHEFMEE, 5 abi EP 5 BY ' W ’ ATTORNEYS. Patented Oct. 27, 1.936 2,059,172 'UNITED "STATES eATENT oFFlCE 2,059,172 SAFETY RAZOR Charles Sabiers, Amherst, Ohio Application August 12, 1933, Serial No. 684,909 5 10 15 20 25 30 11 Claims. (Cl. 30-87) The present invention relates to safety razors axially thru the casing 5 is a cylindrical stem I2 and the primary object of the invention is to the inner end of which is axially slidable and r0 provide an improved safety razor having a free tatable in the circular bore 8 of the plug l. Af floating blade carrying head whereby the blade fixed to the stem I2 is a sleeve Ill having sliding is permitted to automatically follow the curva and rotary movement in the bore I0 of the guide tures ofthe face, as well as yield with a. shock bushing 9 and this sleeve has its inner end pro absorbingaction for cushioning the shave. jecting inwardly beyond the inner end of the guide A further object of the invention is to provide bushing as clearly shown in Figure 2 to provide a safety razor embodying a construction permit a coupling portion lll’ at the inner end of the ting limited yielding of the head in directions sleeve. Thus it will be noted that the stem I2 both rotatable and toward and away from the may rotate and also move longitudinally within handle portion with respect to the normal posi the hollow handle portion. tion of the head. Encircling the stem I2 in the tubular casing 5 A further object of the invention is to pro is a coil spring l5 providing a yieldable coupling vide a safety razor having a head connected to between the handle portion and the cylindrical its handle by yieldable coupling means permit stem I2. The forward end of this spring I5 is ting the head to yield axially of the handle. connected to the sleeve coupling portion I 4', while A further object resides in the specific forma the rear end of the spring is connected to the tion of the head and blade permitting easier reduced coupling portion ‘I’ provided at the in shaving around one’s nose. ner end of the plug l. Figure 2 shows in full lines Other objects and advantages of the invention the normal position of the stem I2 within the cas will be apparent from the following detailed de ing 5 and it will be noted that in this normal scription, taken in connection with the accom position of the stem I2, the convolutions of the panying drawing forming a part of this specifi spring I5 are slightly spaced apart permitting cation/,and in which drawing: rearward yielding of the stem by compressing the Figure 1 is a View in front elevation of the spring. The outer end of the spring I5 is cou improved safety razor and showing the blade and pled to the sleeve I4 in a manner permitting blade clamp detached from the head. outward yielding of the stem I2 thru extension Figure 2 is a longitudinal section thru the safety of the spring. The ends of the coil spring I5 are razor.. rigidly connected to the coupling portions ‘I’ and Figure 3 is an end View of the razor and show ing by dotted lines the manner in which the head may yield in the handle portion. Figure 4 is a plan view of the blank from which 35A the blade clamp is formed. I ll’ so that the stem I2 is placed under a rotary tension when rotated in either direction from its normal position as held by the spring l5. The projecting end or shank portion I6 of the stem I2 is preferably slightly offset at its end as « Referring to the drawing in detail and wherein at Il and connects with the rear face of an elon similar reference characters designate corre gated head plate I8 at a point midway between the ends thereof. This head plate I8 as will be observed more clearly in Figure' 2 is angularly oiîset with respect to the stem I2. The front or forward edge of the head plate I8 is provided thruout its length with a series of guard teeth sponding parts thruout the several views, the im proved safety razor comprises a hollow handle 40 portion A embodying a tubular casing 5 which may be externally knurled as shown and may or may not be provided with the longitudinal slots 6_which terminate short of the ends of the cas ing. The slots 6 if provided will form a better 45 grip for preventing rotation of the casing during use of the razor, altho the knurling may be suf ñcierlt to prevent rotation of the casing in one’s hand. g Rigidly secured in the rear end of the tubular casing 5 is a plug 1 provided with a circular bore Il arrangedco-axially of the casing. Rigidlyse cured in the forward endvof the casing 5 is a guide bushing 9 having an axially disposed bore I ll preferably of slightly larger diameter than the bore 8 and axially aligning therewith. Extended I9 and the rear or back edge of the plate is arcu ately notched out as at 20 at a point midway the ends of the plate. The rear or back edge of the head plate is cut away on arcs at each side of the central notch 20 as at 2l to form relatively narrow end portions at each end of the head plate. The flat single edge blade 22 for engaging upon 50 the flat front face of the head plate I8 has its cutting edge 23 of a length slightly less than the length of the head plate. The central portion 24 of the blade 20 has a straight rear or back edge 245 which extends parallel tothe cutting edge 2 2,059,172 ed to align therewith so that the cutting edge upon the stem I2 and which tension normally acts to return the head plate to a normal posi tion. In assembling the blade and blade clamp upon the head plate I8, the blade may ñrst be posi tioned in the blade clamp between the clamping of the blade is disposed slightlybehind the ends of the guard teeth or ñngers I9. plate 3| and clamping fingers 35 with the straight rear edge 25 of the blade abutting the downturned 23 and at each end of the central portion 24 the rear portion of the blade is cut away on arcs as at 26 to provide relatively narrow blade portions at Ul each end of the blade. These arcs 26 conform t0 the arcs 2| of the head plate I3 and are adapt The blade clamp 30 for removably holding the flange 36 of the clamp plate. The blade and clamp 10 blade 22 in a rigid position upon the head plate plate may then be grasped between the thumb and foreñnger at a point midway the length of the flange 36 and at the rear edge of the clamp plate. The assembled blade and clamp may then be placed upon the head plate I8 from the rear I8, has a configuration in plan substantially con forming to the conñguration of the blade and head plate. The blade clamp 30 may be struck from a single sheet of spring metal having a for 15 mation in blank as shown in Figure 4. The clamp 30 is formed with a ilat clamping plate 3| having a straight front edge 32 extending thruout its length, and a straight rear edge 33 from each end of which the clamping plate is cut out on arcs as at 34 to provide relatively narrow end portions at each end of the clamping plate hav ing a Width slightly less than the width of the reduced end of the blade 22. Bent to extend for wardly in spaced relation over the rear face of 25 the clamping plate 3| just beyond each end of the straight rear edge 33 are clamping fingers 35 for yieldably engaging the rear face of the head plate I8 at opposite sides of the notched out por tion 20. Downturned from the straight rear edge 30 33 of the clamping plate is a shallow stop ilange 36 against which the straight rear edge 25 of the blade 22 abuts. This downturned stop flange 36 as will be observed in Figure 2 has a width sub stantially equal to the thickness of the blade 22. Downturned along each arcuate edge 34 of the blade clamp are ñanges 31 which have a depth preferably equal to the combined thicknesses of the blade 22 and head plate I8, and these flanges 31 form abutments for the arcuate edges 26 of 40 the blade. The arcuate flanges 31 have the clamp ing fingers 35 extending forwardly from the lower edges thereof, and these arcuate ñanges also as sist in guiding the blade into a properly centered position longitudinally of the blade clamp and 45 also prevent longitudinal shifting of the blade when clamped upon the head plate. The speciñc end fOrmations of the head plate, blade and blade clamp, whereby relative narrow ends are formed, not only facilitate shaving around one’s nose but edge thereof so that the thumb or foreflnger moves into the recess 2B of the head plate. The arcuate cutouts 2| of the head plate will centrally locate When recess clamp the clamp plate upon the head plate. removing the blade and blade clamp, the 20 permits grasping of the blade and blade 20 between one’s thumb and foreñnger so that the blade and blade clamp may be removed as a unit and without liability of contacting the blade cutting edge 23. Thus it will be seen that a safety razor of irn 25 proved construction has been provided wherein the blade carrying head is mounted in a free floating relation to the handle portion to permit the blade to automatically follow the curvatures of the face as well as yield in directions toward 30 and from the handle during use. It will further be apparent that a specific construction of the blade has been provided permitting better use of the razor when shaving around one’s nose. Changes in detail may be made to the form of invention herein shown and described, without departing from the spirit of the invention or the scope of the following claims. I claim: l. A safety razor comprising a handle portion, 40 a head movably mounted in the handle portion, and yieldable coupling means between the han dle portion and head to permit rotary yielding of the head about a fixed axis and straight line lon gitudinal movement with respect to the handle 4:5 portion. 2. In a safety razor, a handle, a stem rotatable blade during use. In use of the safety razor it will be noted that and axially movable in the handle, a head carried by one end of the stem, and yieldable coupling means between the stem and handle and placed 50 under tension upon movement of the stem from its position as normally held by the yieldable cou due to the yieldable coupling between the stem I2 and handle portion A, that the blade carrying pling means. 3. In a safety razor, a hollow handle, a stem 50 also provide for better sight at the ends of the 55 head plate has a free floating movement and is permitted to yield in directions axially of the handle portion as well as rotate therein. Refer ring particularly to Figure 2 it will be seen that the head plate may move away from the handle 60 portion by extending the coil spring I5. Due to the convolutions of the coil spring I5 being nor mally spaced apart when the spring is not under any tension, the head plate may move toward the handle portion by compressing the coil spring. Outward limited movement of the stem I2 is pro vided by engagement of the coil spring with the inner end of the guide bushing 9, while inward movement of the stem will be limited by contact ing of the convolutions of the coil spring. The 70 coil spring I5 when in its normal condition yield ably holds the head plate in one position until an uneven pressure is exerted upon the end portions of the head plate whereby the head plate will be slightly twisted to one side or the other as shown 75 in Figure 3 and place a rotary or twisting tension axially movable in the handle, a blade supporting 55 head carried by one end of the stem, and cou pling means between the handle and stem and normally retaining the stem in a position relative to the handle permitting limited yielding of the stem axially in either direction from its normal 60 position of rest. 4. In a safety razor, a hollow handle, a stem rotatable and longitudinally movable in the han dle, a blade carrying head mounted transversely of one end of the stem, and spring means con nected between the handle and stem and per mitting rotary and longitudinal movement of the stem within the handle in either direction from its normal position of rest. 70 5. In a safety razor, a hollow handle, a stem rotatable and longitudinally movable in the han dle, a blade supporting head mounted transverse ly of one end of the stem, and a coil spring encircling the stem within the handle and having 75 2,059,172 one end rigid with the handle and its opposite end rigid with the stem. 6. In a safety razor, a handle, a stem rotatable and longitudinally movable in the handle, a coil spring encircling the stern, means rigidly con necting one end of the spring to the handle, and means rigidly connecting the opposite end of the spring to said stem whereby the spring is placed under tension by either rotary or longitudinal 10 movement of the stem. ‘ '7. In a safety razor, a hollow handle, a cylin drical stem rotatable and longitudinally movable in the handle, a blade supporting head mounted to extend transversely of one end of the stem, 15 a coil spring encircling the stem within the handle and having the convolutions thereof nor mally spaced apart, means rigidly securing the spring atone end to the handle, and means rig idly securing the opposite end of the spring to 20 the stern. 8. In a safety razor, a handle embodying a tubular casing, a plug secured in the rear end of the casing and having an axially disposed bore, a guide bushing secured in the forward end of 25 the casing and having a bo-re axially aligning with the bore in said plug, a stem reciprocable and rotatable in said bores, a blade supporting head mounted transversely of one end of the stem, and a coil spring encircling the stem between the plug and guide bushing and having one end rig idly secured to said plug and its opposite end rigidly secured to the stem for exerting a tension thereon when said head is moved from its normal position at rest. 35 _ 9. In a safety razor, a handle comprising a tubular casing, a plug fixed in the rear end of the casing and having a bore extending axially of the casing, a guide bushing ñxed in the forward end of the casing and having a bore axially aligned with the bore in said plug, a stem ex 40 tending axially thru the casing and having its inner end rotatably fitting in the bore of said 3 plug, a sleeve fixed to the stem and slidably fit ting in the bore of the guide bushing, a blade carrying head mounted transversely of the outer end of the stem, a coil spring encircling the stem between the plug and guide bushing, means rig idly connecting the spring at one end to the plug, and means rigidly connecting the opposite end of the spring to said sleeve, said spring hav ing the convolutions thereof normally spaced apart. 10. In a safety razor, a handle, a stem yieldably mounted in the handle, a head plate mounted midway of its ends upon the outer end of the stem and having its rear portion cut away at each end of the plate providing relatively narrow end portions, a blade for engaging over the front face of the head plate and substantially con forming to the shape thereof, and a blade clamp embodying a clamping plate engaging over the ‘blade and clamping fingers engaging the rear 20 face of the head plate at opposite sides of its point of connection with said stem, said blade clamp having ñanges along its rear edge and be ing of a shape substantially conforming to said head plate. 25 11. In a safety razor, a head plate having a recess in its rear edge intermediate the ends of the plate and cut away on arcs at each side of the recess to form relatively narrow ends for the head plate, a blade having a central portion pro 30 vided with a straight rear edge and cut away on arcs from each end of the straight rear edge to pro-Vide substantially narrow end portions for the blade, and a clamp for securing the blade to the head plate embodying a flat clamping plate for engaging the blade and clamping ñngers for engaging beneath the head plate, said recess in the head plate permitting grasping of the rear central portions of the blade and blade clamp for removal thereof from the head plate. 40 CHARLES SABIERS.