Патент USA US2406983код для вставки
Sept. 3,1946.- ' "J. w; ANDERSQN RAZOR 2,406,983 ‘ Filed July 1. 1944 Í.:A 112:1. v l. , „ . INVENTOR. Ja?n I/V Ande/:sof: Patented Sept. 3, 1946 2,406,983 UNITED` STATES PATENT OFFICE_V 2,406,983 RAZOR John W. Anderson, Gary, Ind. Application July 1, 1944, Serial No. 543,067 23 Claims. (Cl. 30--85) 1 2 This invention relates >to razors and in par ticular to a safety razor of the type wherein the prises a knurled member 5 having an axial threaded bore 6. The head is secured to the member 5 by screwing the stud 3 into the right handle assembly is constructed to permit the blade carrying head of the razor to rotate or re volve around the axis of the handle and thereby automatically equalize throughout the length of the cutting edge of the head its pressure against the area to be shaved. Such an automatically adjusting razor is shown in the patent to Buell 2,126,728. In the Buell patent the handle as sembly comprises a stem which is drilled and tapped at one end and screwed on a conventional blade carrying head in a conventional manner. A handle in the form of a sleeve is freely rotatably mounted over the stem. With this type of razor hand end of bore 6. An elongated stem 1 pro vided with a reduced threaded end 8 is arranged to be screwed into the opposite end of bore 6. Stem 'l is provided with an enlarged head 9. A handle member I 0 preferably of molded plastic and in the form of a sleeve is rotatably mounted over stein 1 and retained thereon by head 9. A removable plug II is secured in the counterbored end I2 of sleeve ID. By removing plug II, a screw-driver may be employed to unscrew shaft l from knurled member 5 so that all of the parts 15 may be disassembled for cleaning. it has been difficult to maintain between the stern and the handle the exact degreefof friction which would prevent the razor head from freely spin ning or turning out of the desired position pre paratory or during a shaving stroke and at the 20 same time avoid excessive friction between the stem and handle which would prevent the razor Handle II) is provided with a plurality of elon» gated slots I3 extending throughout a portion of the length of the handle. Handle IU is made of a ilexible, or a distortable, or a resilient material, such, for example, as a molded plastic or semi 'hard rubber. Handle II'I has a loose fit on shaft 1, The normal pressure of the fingers when en from readily equalizing its pressure against the gaging handle Ill deflects sections I4 of the handle area to be shaved throughout changing angles between slots I3 against shaft l, thereby provid incident to a shaving stroke. 25 ing sufficient friction to prevent the razor head It is also desirable when shaving irregular sur from moving or revolving too freely but still per face, such, for example, as the upper lip portion mitting it to move freely enough to readily about the nose, to be able to use against such sur equalize its pressure against the surface to be face a corner of the razor head and a correspond shaved. ing cutting edge of the razor blade. Under such 30 When it is desired to prevent the razor head and conditions it is desirable that rotation of the head shaft 'l from turning within handle ID, it is only and stem in the sleeve or handle be prevented. necessary for the operator to apply- additional it is the object of this invention to accomplish pressure to the handle without otherwise chang with maximum convenience to the operator the ing the position of the hand. This pressure is a two purposes above mentioned and other purposes manual or finger pressure. This increases the which will appear. friction between the handle Il) and the shaft ‘l In the drawing: sufficiently to permit shaving of comparatively Fig. 1 is a side elevation of my razor. less accessible surfaces, such as adjacent to the Fig. 2 is a longitudinal sectional View of the nose, without the razor head turning with rela 40 tion to the handle lll as the result of pressure handle and stem of the same. against one end only of the shaving edge of the Fig. 3 is a section along the line 3--3 of Fig. 2. razor blade. Fig, 4 is an exploded View of the form of my The plug Il is preferably frictionally heldin razor shown in Fig. 1. the counterbored or recessed end I2 of handle I0 ` Figs. 5 and 6 are longitudinal sectional views through two modified forms of my razor handle 45 to prevent the introduction of foreign matter at the head of shaft 1. Knurled member 5 facili.. assembly. tates screwing of the handle assembly on and off Referring to the drawing, I have shown for the threaded portion of the razor head which illustrative purposes a Gillette type razor wherein must be done each time the blade is replaced. the head comprises a clamping plate I, a guard Various shapes of handles other than handles plate 2, and a threaded stud 3 fixed centrally to with a round cross-section may be employed with the clamping face of the clamp. The blade (not in the scope of the invention to accomplish the shown) is clamp-ed between the clamp I and the above purposes by the introduction of a plurality guard 2 and the head is secured to the handle by of members or portions variously responsive to means of the screw threaded stud 3. My handle assembly for holding the head com 55 the varying pressures of the operator’s hand. 2,406,983 3 4 Sections I4 may, of course, be any plural number and may not be integral with the handle or each other. member and rotatable thereon, said handle hav ing a flexible portion readily and variably dis placeable toward said member by varying pres sures of the hand of the operator and adapted to contact said member to produce responsively and simultaneously a correspondingly varying fric Handle I0 can be made of a distortable ma terial like vulcanized rubber, in which case slots I3 will be omitted. Such distortable and pref erably elastic material, such as rubber, will per mit the handle to respond to hand pressures to increase the friction or braking action of handle I0 against shaft 'I to accomplish the results above described. Instead of having the braking action occur be tional resistance to rotation of said handle on said member. 4. A safety razor including a blade carrying 10 head and rigid means secured to said head, a handle of manually distortable material rotatably mounted upon said rigid means, and braking tween handle Iû and shaft 1, it may be desirable ' means carried by said handle and rigid means to have the braking action occur between end I5 of handle III which is adjacent the face I6 of member 5. Two forms of this handle arrange Vand controlled by the manual distortion of said handle to effect a braking action between the handle and rigid means to prevent relative ro tation between said handle and rigid means. 5. The combinaiton as set forth in claim 4 wherein the rigid means comprises an elongated terial, such as rubber. The sleeve is provided 20 rigid stem having a head on its outer end and a connection for removably conecting the stem to with an internal circumferential arch or relief portion I 8 intermediate its ends so that upon the the head. application of pressure to the arched area I8 the 6. The combination as set forth in claim 4 sleeve Il will elongate and thereby cause a brak wherein the rigid means comprises a member having a threaded longitudinal opening there ing pressure between face I5 of the sleeve and through, the said threaded member adapted to the face i6 of the member 5 to prevent the head from turning relative to the handle Il. have a screw fit with the head in one end of said opening and a rigid stern having a head on one In Fig. 6 the handle i9 is made of molded plastic provided with slots 2B identically the same end and the other end threaded and having a as slots I3 of handle IQ, Fig. 1. Handle I‘B is screw ñt in the other end of the opening of said provided with a circumferential relief or internal aforementioned member, the said handle being rotatably mounted upon said stem. groove 2i .intermediate its ends, similar to relief ’7. A safety razor including a blade-carrying I8 in Fig. 5,. so that hand pressure against the relieved central portion of handle i9 will cause head and rigid means rigidly secured to said it to elongate and effect a braking action between ' head, a handle of resilient material rotatably the end face I5 of handle I9 and face I5 of mem» mounted upon said rigid means, said handle hav ing a normally loose iit upon said rigid means ber 5 to prevent relative rotation between the to permit free rotation between the handle and shaft 'I and handle I9. said rigid means and at least one longitudinal In the forms of handles shown in Figs. 5 and 6 braking action will also occur between head `9 40 slot in said handle whereby the handle responds to manual pressure to eifect a braking action be and the inner face 22 of recess I2. tween the handle and the rigid means upon The above invention greatly enhances the util ity of razors of the type described. Shaving is which it is mounted to thereby retard relative facilitated. Abrasions resulting from unequal rotation between the handle and the rigid means. 3. A safety razor comprising a blade-carrying pressures of the blade on the skin are avoided. 45 The skin is left in more comfortable condition. head and a rigid stem ñXed to said head, a han die in the form of a sleeve rotatably mounted Blades last longer due to the absence of excessive resistance resulting from "scraping” occasioned upon said stem with a small clearance sufñcient to permit rotation of the handle on the stem, by rigidity of the conventional razors of the Gil said h'andle being fabricated from material dis~ lette type. _ tcrtable by manual pressure whereby upon the Note particularly that variations in the resist application of such manual pressure to said ance of the head to rotation are accomplished handle the clearance is taken up between the without altering the position of the hand and said stem and handle to effect a braking action merely by reducing or increasing the pressure of the hand upon the handle. 55 between the handle and stem and thereby retard relative rotatie-n between the same. I claim: 9. The combination as set forth in claim 8 1. In a razor of the class described and in com wherein the handle is provided with a plurality bination, a blade-carrying head, an axial mem of elongated lengthwise slots to facilitate manual ber connected thereto, a handle embracing and rotatably mounted on said member and being 60 distortion of said handle to achieve the desired braking effect. ñexibly responsive to pressure of the hand of the l0. The combination as set forth in claim 8 operator to frictionally engage said member and wherein the handle is made from a molded plas retard rotation of said handle on said member. tic and has a plurality of lengthwise slots which 2. In a razor of the class described and in com bination, a blade-carrying head, an axial mem 65 facilitate the manual distortion of the handle to achieve the desired braking action between the ber connected thereto, a handle embracing said handle and stem. iember and rotatable thereon, said handle being l1. A safety razor including a blade-carrying provided with a plurality of sections at least one of which is adapted to respond variously to vary head, a rigid stem, a rigid connection for` con ing pressures of the operator’s hand and adapted 70 necting the stem to said head, said rigid connec tion having a greater outside diameter than the to transmit correspondingly varying pressures outside diameter of the stem whereby the con against said member. nection forms a shoulder at one end of the stem, 3. In a razor of the class described and in com a handle rotatably mounted upon said stem and bination, a blade-carrying head, an axial mem ber connected thereto, a handle embracing said d having one end abutting the aforementioned ment are shown in Figs. 5 and 6. In Fig. 5 the handle is made in the form of a sleeve Il of a resilient or elastic distortable ma 2,406,983 5 . shoulder, means cooperating with the afore mentioned shoulder for retaining said handle on said stem, said handle comprising manually dis tortable material whereby manual distortion of said h'andle causes an elongation of the same to effect a braking action between the end of the handle and said shoulder to retard relative rota tion between the handle and said stem. 12. A safety razor including a blade-carrying head and rigid means secured to said head in cluding a circumferential shoulder, a, handle in the form of a sleeve rotatably mounted upon said rigid means with one end of the sleeve abutting the said shoulder, said rigid means having an other shoulder adapted to cooperate with said aforementioned sh'oulder to retain the sleeve upon said rigid means, said handle being fabri cated from a manually distortable material and normally having a small clearance with said rigid 6 means actuatable to retard relative rotation be tween said handle and rigid means. 17. A safety razor including rigid means adapt» ed to be secured to a blade carrying head, a han dle rotatably mounted on said rigid means, and said handle being provided with manually actu atable braking means responding variously to varying manual pressures to retard relative ro tation between the handle and rigid means. 18. In a safety razor of the type having a blade carrying head and a rigid shaft secured thereto, the combination of a handle rotatably mounted on said shaft, and said handle being provided with manually actuatable braking means re sponding variously to varying pressures of the operator’s hand to retard relative rotation be tween the handle and the shaft. 19. A safety razor including a blade-carrying head having rigid means extending therefrom, a means to permit free rotation of the handle on 20 handle rotatably mounted on said rigid means, and said handle being provided with braking said rigid means, the said handle responding to means actuatable to engage th'e rigid means to an increase in manual pressure to take up the retard relative rotation between said handle and clearance between the handle and rigid means said rigid means. and thereby effect an elongation of the handle 20. A safety razor including rigid means ex and produce a braking effect between the end of tending from a head adapted to have cutting th'e handle and said shoulder to thereby retard means attached thereto, a handle rotatably relative rotation between the h'andle and rigid mounted on said rigid means, and said handle means. ' having manually actuatable braking means re 13. In a safety razor including a blade-carry ing head, a rigid stem, and a shouldered con 30 sponsive variously to varying manual pressures to retard relative rotation between said handle nection for connecting the stem to said head, a and said rigid means. handle in the form of a sleeve normally freely 21. In a safety razor of the type having a blade rotatably mounted upon said stem, a shoulder ad carrying head, the combination of rigid means jacent the outer end of said stem for retaining Y adapted to be secured to said head, a handle the sleeve thereon, said handle having an inter rotatably mounted on said rigid means, said han nally relieved area intermediate its ends, said dle including at least one section having a loose handle comprising manually distortable material whereby upon an increasein manual pressure in nt on said rigid means whereby said section re sponds variously to varying manual pressures to the area of said relief the handle is manually dis torted and elongated to produce a braking effect 40 effect a braking action with said rigid means and retard relative rotation between th'e handle and between the end of th‘e handle and the shoulder. rigid means. 14. The combination as set forth in claim 13 22. A razor provided with a spindle, a handle wherein the handle is provided with a plurality movably mounted on the spindle, said handle in of lengthwise slotsto facilitate manual distor- ' 45 cluding at least one section having a loose iit on tion of the same. the spindle whereby at least one section may re 15. In a safety razor and in combination a spond variously to varying manual pressures to blade-carrying head, rigid means secured to said eiiect a braking action between a portion of said head, a handle rotatably carried by said rigid section and said rigid means. means, and displaceable means carried by said 50 23. A razor provided with a spindle, a handle handle and adapted to retard variably such ro movably mounted on said spindle, said handle tation of said rigid means by varying the pres- - comprising a plurality of sections positioned cir- - sure of the operator’s hand upon said handle cumferentially of the spindle and having a loose without otherwise altering the position of said fit thereupon whereby said handle may respond hand with relation to said handle. 55 variously to varying manual pressures applied 16. A safety razor including a blade carrying throughout a substantial portion of the length head, rigid means extending from said head, a of said sections to retard relative movement be handle rotatably mounted on said rigid means, tween th'e handle and spindle. and said handle being provided with breaking JOHN W. ANDERSON.