Патент USA US2116280код для вставки
May 3, 1938. WQ T. PARKIN 2,116,280 RAZOR Filed June 1, 1935 11117/1111, l -l-’atented May 3, 1938 2,116,280 UNITED STATES ‘PATENT ' OFFICE 3,116,380 Razon n - _ Winn-«i rr., Parkin, Providence, n.. I., assignm- to Theodore W. Foster à Bro. R. I., a corporation of Maine Co., Providence, Application :une 1, más. serial No. 24.508 15Clalms. This invention relates to improved safety razors, particularly of the type employing recipro eating blades, and to blades ‘to be employed in such razors. In some respects the 'present inven tion aifords an improvement upon they type of Vrazor disclosed in United States Letters Patent N0. 1,890,733 to‘JOhti L. King. In accordance with the present invention, how ever, an actuating roller, for example having a cam groove, may be arranged directly to engage lo" a portion or portions of a reciprocating blade so that only one moving part is necessary to impart a reciprocatory movement to the blade; thus slid (ci. sus) straight-line reciprocatory' path. Integral tabs or ears may extend inwardly from the sides of the rectangular opening in the blade to afford fol lower elements which engage opposite sides of the roller. Thus the roller may be provided with a cam groove engaging ears on the blade at both sides thereof, and balanced forces tending to re- Y ciprocate the blade are imposed upon both sides thereof. Furthermore, the blade may be of sym metrical design so that either face thereof may be disposed’uppermost in the razor. A further advantageous Vfeature of the in vention pertains to the v‘arrangement of the parts, ing saddles, actuating plates, oscillating rods and ' and especially .the cam groove of the roller and 15 the like are avoided. This construction also per-‘ mits the provision of a blade with two cutting edges with the driving roller symmetrically ar ranged relative to the blade and these edges. Furthermore, the actuating roller itself may be the cooperating parts- of the blade so that the latter may readily be located in operating posi- . tion upon the support without necessity for care - ful adjustment. In the accompanying drawing: i i disposed with its axis'of rotation in the region of the plane of the blade, so that the exposed portion of the roller does not protrude unduly holder Fig. 1ofisa arazor central embodying vertical the section partsofofthe this blade in above the retainer or cap of the holder. Accord of the handle, being >shown in‘ elevation; ingiy, a holder may be provided which may have 'a compact, i'lat form comparable to that provided by holders which are not supplied 'with recipro cating blades. ` ’ .An important aspect of the invention involves the form of the blade support which may be made of a single piece of sheet metal to provide an opening and recess to receive the lower part of the actuating roller and to provide ears in which the ends of the roller are journaled. The support may, for example, have a rectangular . vention, certain parts, including the upper part ,20 ' ~ Fig. 2 is a central section on a plane at right angles to that of Fig. 1: ' ‘ " . Fig. 3 is a plan view of the holder with the roller removed, showing the retainer swung to its open position; Fig. 4 is a similar view, but showing the roller and blade, and with a part of the retainer broken away; ' » ` Fig. 5 is a plan view of a blade which» may be employed in a 'razor of the present type; l; and opening is pressed downwardly to ‘afford two> Fig. 3. generally semi-«cylindrical "sleevg elements that may enclose portions of the roller and _an in In the accompanying drawing, which illustrates the principles of the present invention, the handle termediate cylindrical boss integral with these elements to receive the handle. The boss. and elements cooperate in providing a stiiï rein of the razor is designated by numeral l. The upper end of the handle ñts tightly within an in connected to the handle despite the provision of the opening to receive the roller. 'I'he retainer, 45 whichy may conveniently be of the swinging type, may be arranged to provide an opening through 30 Fig. ¿6 is a section indicated by line 6-6 of Fig. opening or recess with struck-up ears at its ends, while the >metal at the intermediate part of the , forcement for the portion of the support which is 5 l j ‘ Fig. '1 is a section indicated by line ‘l--l of . tegral boss 2 of the blade support 3, which forms a part of the blade holder. -'I’he support may be provided with a plurality‘of elongate recesses 4 which separate its body portion from rail-like guard portions 5. The support may also have aplurality of small protuberances l (Fig. 3) dis which the upper surface of the roller is exposed -posed adjoining the openings 4 to engage the forengagement with the flesh of the user of the lower surface 'of the blade and support the same. razor. y The support 3 is provided with a central gen 50 A razor of this type may» employa blade of erally rectangular opening I0, the intermediate simple form having a generally rectangular open parts of the sides of which are bulged ,slightly to ing therein, the sides of which may engage the conform to thecurvatureÄof boss 2. The metal edges of the ears which support the actuating at the ends of the opening I0 is struck upwardly roller, thus the blade is constrained to follow a >to afford small ears I5 which have openings in 55. 56 . 2 2,118,280 which the ends of an actuating roller I1 are jour inales. 'rms roller 1s provided with roughened or fluted end portions Il and an intermediate part permits a blade support to be formed of a single. into a substantially semi-cylindrical form to af ford guard sleeve elements 2l (Figs. ’6 and '1) and affording a reinforcement. for this portion of the holder; furthermore, the ears which sup which surround the adjoining parts of the roller port the actuating roller and which afford guide I1. 'I'he elements 20 are 'integral with the boss. 2 and in effect afford a recess beneath the central means for the reciprocating blade may also be piece of sheet metal not only to provide guard rails and a boss portion to receive the end of the handle, but also to provide the guard'sleeve ele providing a cam groove Il. Below the inter mediate part of the opening Il, and at each side ì ments 2li below the roller, these elements also ' of the boss 2, the metal of the support I is bent connecting the opposite sides of the opening Il part of opening I0 in which the lower part of the roller is received. Obviously the elements 2l and the boss 2 cooperate in reinforcing the guard in 15 the region of the opening Il and afford a rigid structure where the guard or support is connected to the handle. The holder may also include a retainer 2i which is connected by a suitable hinge 2l to one end of 20 the support 3. The opposite end of the retainer ’ is provided with a resilient clip 22 which may normally engage> the lower surface of the sup porting plate adjoining a notch 23 in the end of that plate. When the clip 22 is pressed upwardly 25 and outwardly, the retainer may be swung to the open position shown in Fig. 3, thus exposing the surface of the support so that a blade may be dis posed therein. The retainer is also provided with a central generally Irectangular opening 2l in 30 which the upper part of the roller I1 is received. The ends of this opening are provided with notches 28 in which the edges of the ears I! may be received, the upper surfaces of the latter being disposed substantially in the region of the upper 35 surface of the retainer, as shown in Fig. 1. The blade 40 may be of generally rectangular 40 integral with the supporting blade. Due to the arrangement of the axis of the roller in theregion of the plane of the blade, an unusually compact construction is provided so that the exposed por tion ofthe roller does extend substantially above 15 the retaining plate. Thus neatness of appear ance is afforded and convenience in shaving is facilitated. It should be understood that the present dis closure is for the purpose of illustration only and 20 that this invention includes all modifications and equivalents which fall within the scope of the appended claims. I claim: 1. A razor of the class described comprising a blade support, a blade, a retainer normally co operating with the support in holding the blade in place, an actuating roller rotatably mounted on the support and having its axis of rotation near the plane of the blade, the retainer having an 30 opening through which the upper portion of the roller is 'exposed for engagement with the flesh of the user of the razor, said roller having a cam portion, said blade having an integral part en Seeing said cam portion and functioning as a follower so- that the blade is reciprocated as the form, as shown in Fig. I5, having parallel cutting roller is rotated. edges 4I and a central opening l2. This open 2. A razor of the class described comprising a blade support, a blade, a retainer cooperating with ing may be o_f generally rectangular form. having straight parallel sides ß to slide in juxtaposition to the edges of the ears I5 (Figs. 4 and 6). The intermediate portions of the sides 43 of the open ing are, however, provided with inwardly extend ing follower tabs or lugs ß which are received in These ears may have straight edges to engage the sides of the groove and curved 45 the cam groove I9. ends to facilitate their initial engagement with the groove. I When a blade of this type is to be disposed in 60 the razor, the retainer 2l is swung to its open the support in holding the blade in place, said support having upstanding elements extending into an opening in the blade and affording guide means therefor to restrain the blade to follow a straight-line path, an actuating roller rotatably mounted on said elements and providing a cam 45 portion, a part of the blade engaging said cam portion and functioning as a follower therefor so that the blade is reciprocated in response to rota tion of the roller. _ 3. A razor of the class described comprising a position illustrated- in Fig. 3, and the blade is moved downwardly so that the tabs ß engage the cam groove I9, the curved ends of these ears blade support, a blade, a retainer cooperating with the support in holding the blade in place, said support having a central opening and up readily moving into initial engagement with the standing integral ears at the ends of the open 55 -cam groove. The »blade is then moved down ing, the blade having an opening with its sides 55 wardly so that the ends of opening 42 fit about slidably engaging .the edges of said ears so that ‘the ears I5 and-the sides 4I >of the opening are the blade is constrained to follow a' straight-line y in sliding engagement with the edges of the ears.. path, an actuating roller journaled in openings The retainer 25 may then be swung to its normal in said ears and having a cam portion, portionsy of the blade extending inwardly from the oppo 60 00 position so that the upper part of the roller ex tends through the opening 2l in the retainer. site sides of its opening and engaging said cam “When the razor is used, the roughened portions portion to function as followers therefor so that I8 of theroller I1 engage the flesh of the user, the blade is-recipi‘ocated in response to rotation reciprocating the blade and acting through the of the roller. 65 cam groove I9 and follower lugs 4l in imparting 4. A razor of the class described comprising a a reciprocating movement to the blade, which is lblaide support, a blade, a retainer cooperating restrained to follow a straight-line path by the with the support in holding the blade in place,ears I5. said support having a central opening and up It is evident that this invention affords a very standing integral ears at the ends of the opening, simple arrangement wherein _a driving roller is 70 the blade having an opening with parallel sides the only moving part necessary to impart move ment to a reciprocating -blade. the ears which slidably engaging theedges of said ears so that support the roller forming guide means to restrain ' the blade is constrained to follow a straight-line the blade so that it follows a straight-line path. path, an actuating roller journaled in openings ent illustrated herein in said ears and having a cam portion, portions 75 The structural ' - 3 , 2,116,280 of the blade extending inwardly from the sides on said ears and providing avcam portion, a pro- ‘ of its opening and engaging said cam portion to jection extending inwardly from the side of the function as followers therefor, integral portionsv opening in the blade and engaging said cam por of said support being of substantially,semi-cylin- ‘ tion to function as a follower therefor, said sup- l drical form and being disposed adjoining the cen port having a generally semi-cylindrical part dis, tral part of the opening in the support to afford ‘ posed below the roller and affording a recess in shields for the lower part of the roller while con-l which the lower part of the roller is received, said necting the portions of the support at opposite semi-cylindrical part connecting portions of the sides of the opening therein. support at opposite sides of the roller. _ 9. lIn a razor lof the class described, a blade 10 ‘ 5. A razor of the class described comprising a 10 blade support, a blade, `a retainer cooperating with the support in holding the blade in place, said support having af central opening and up standing integral ears at the ends of the opening, 15 the blade having an opening with parallel sides slidably engaging the edges of said ears so that the blade is constrained to follow a straight-line path, an actuating roller journaled in openings in said ears and having a cam portion, portions of the bladeextending inwardly from the sides 20 support comprising a plate-like body portion hav ing a central opening therein, opposite sides of said opening being connected by a generally curved shield portion, upstanding ears disposed at the ends of the opening, and a roller journaled on the ears and having its lower part received in said shield portion. ' - . > 10. In a razor» of the class described, a support comprising a plate-like body portion having a central opening therein, integral upstanding ears of its opening and engaging said cam portion to at the ends of the opening, a ‘roller journaled on function as followers» therefor, integral portions the ears, integral parts of said body portion being of said support being of substantially semi-cylin shaped to curve downwardly below the roller to drical form and disposed adjoining the central t afford a recess below the opening in which a part 25 part of the opening in the support while connect of the roller is received, and an integral boss for 25 ing the portions of the support at opposite sides connection to a handle, said boss and said inte of the opening therein, a portion of said support gral parts being Aintegrally connected to eachproviding a central boss for connection to a han dle, said integral portions being integrally con 30 nected to said boss. ' 6. A razor of the class described comprising a -blade support, a blade having an opening with parallel sides, a retainer cooperating with the` support in holding the blade in place, said sup 35 port having upstanding ears extending through the opening in the blade, the parallel sides of lsaid opening slidably engaging the edges of said ears so that the latter afford guide means to constrain the blade to follow a straight-line path, an actu 40 ating roller having its ends journaled on said ears> and providing a ycam portion, the roller having its axis of> rotation disposed adjoining the plane of the blade, the retainer having an opening through which the upper part of said roller is exposed, a 45 part of the blade engaging said cam portion and , , l1. A razor of the class described comprising a blade holder, a blade having opposite parallel 'cut 80 ting edges and an actuating roller rotatably mounted on the holder and having a cam groove, said blade having a central opening in which a part of the roller is disposed and having similar projections extending into engagement with the 35 cam groove on opposite> sides of the axis of rota tion of the roller whereby the blade may be recip- ' rocated in a path parallel to its cutting edges in response to rotation of the, roller. ' 12. A razor of the class described comprising a 40 handle, a blade holder connected to the handle and symmetrically arranged in relation thereto, a cam roller symmetrically supported by the holder, a double-edged blade mounted-on the holder and having a central opening with portions engaging 45 functioning as a follower therefor so that the the roller to function as ‘followers so that the blade is reciprocated in response to rotation of blade may be reciprocated in response to rotation the roller. of the roller. 13. A razor of the class described comprising a handle, a support‘connected to the handle and 50 symmetrically arranged in relation thereto, a cam roller symmetrically supported by the support, a ' double-edged blade mounted on the support and having a central opening with portions engaging Y 7. A razor of the class described comprising a 50 4blade support, a blade having an opening with parallel sides, a retainer cooperating with the Y support in holding the blade in place, said sup port having upstanding ears extending through the opening in the blade, the parallel sides of said 55 other. opening slidably engaging the edges of said ears so that the latter aiford guide means to constrain the blade to follow a straight-line path, an actu ating roller having its ends journaled on said ears and providing a cam portion, the roller hav the roller to function as followers so that the 55 blade may be reciprocatedl in response to rotation of the roller, and a swinging retainer normally positioned to hold the blade on the support, saidv retainer having a central opening through which the roller is exposed for engagement .with the ing its axis of rotation disposed adjoining the plane of the blade, the retainer having an opening flesh of theuser of the razor. ' through which the upper part of said roller is ex 14. A razor of, the class described comprising a posed, integral projections of the blade extending blade holder providing upstanding ears, a cam inwardly from the parallel sides of its opening ' roller rotatably mounted on said ears, a blade 65 and engaging said cam portion, said projections having a central opening in which the roller and 65 functioning as followers so that the blade is recip ears are disposed, said opening being shaped to 60 rocated in response to rotation of the roller. 8. A razor ofthe class described comprising a blade support, a blade having an opening with provide a follower portion engaging the roller so that the blade is reciprocated when the `roller is parallel sides, a retainer cooperating with the support and holding the blade in place, said sup the ears so that the latter guide the blade in a 70 rotated, said -opening providing edges engaging rectilinear path as it is being reciprocated. ’ port> having upstanding ears extending through 15. A thi-n razor blade of the class` described the opening in the blade and affording guide having opposite parallel straight cutting edges means to constrain the blade to follow a straight and having a central opening, the opening being of rectangular form with opposite sides parallel to 75 75 line path, an actuating roller rotatably mounted 4 2,110,280 the respective cutting edges, said opening extend ing the major portion of the length of the blade, the intermediate parts of said opposite sideseach being interrupted by a single relatively small in wardiy extending lug, the lugs being similar and directly opposite each other, the sides being straight between the lugs and the ends- of thev opening to engage parts oi' a blade holden so that the blade may be guided in a straight line recip rocating path, said blade being symmetrical rela tive to both its longitudinal and transverse cen tral axes. , ' y WINFRED T. PARKIN.