US2748467A - Safety razor - Google Patents

Safety razor Download PDF

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Publication number
US2748467A
US2748467A US284114A US28411452A US2748467A US 2748467 A US2748467 A US 2748467A US 284114 A US284114 A US 284114A US 28411452 A US28411452 A US 28411452A US 2748467 A US2748467 A US 2748467A
Authority
US
United States
Prior art keywords
blade
spider
razor
cap sections
arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US284114A
Other languages
English (en)
Inventor
Meyer J Shnitzler
Ferrara Frank
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gillette Co LLC
Original Assignee
Gillette Co LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE519414D priority Critical patent/BE519414A/xx
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Priority to US284114A priority patent/US2748467A/en
Priority to GB7809/53A priority patent/GB731992A/en
Priority to DEG11472A priority patent/DE947686C/de
Priority to FR1075878D priority patent/FR1075878A/fr
Priority to CH315964D priority patent/CH315964A/de
Application granted granted Critical
Publication of US2748467A publication Critical patent/US2748467A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/30—Safety razors with one or more blades arranged transversely to the handle of the type carrying pivotally-mounted caps
    • B26B21/32—Safety razors with one or more blades arranged transversely to the handle of the type carrying pivotally-mounted caps in razors involving double-edged blades

Definitions

  • This invention comprises a new and improved safety razor of the unitary type, that is to say, of the type that has no loose or detachable parts.
  • Such safety razors include a spider movable with respect to the blade seat and carrying pivotally mounted cap sections.
  • the opposite ends-of this movable spider have heretofore been more orless exposed, and it has sometimes resulted that the user will-hold the razor between his thumb-and forefinger by the ends of the spider and so'interfere-with the free closing movement of the razor, perhaps by displacing the blade from the blade seat so that it is caught by the closing cap sections.
  • An important advantage of the improved razor of the present invention is that both ends of the spider are completely shielded by stationary protectors which also serve as convenient finger grips for holding the razor while a freshblade is being presented thereto or a used blade removed therefrom.
  • thetmovement of the ends of the spider in closing thecap sections takes place in a path that is completely enclosed by extensions from a relatively stationary portion of the razor that may take the shape of Wide flat aprons, not only covering the moving parts, but presenting extended finger grips that are comfortable to the hand of the-user and located where theywill be most naturally engaged.
  • the aprons which serveas shields and finger grips have also. a. third function in that they reinforce and'support the pointsofi connection between the spider and the cap sections.
  • these parts which are preferably of'somewhatv delicate construction, are reinforced and held positively against springing even when an undue amount of force is exerted by the user in clamping the blade for shaving.
  • Fig. 1 is a view in perspective of the razor in closed position and on an intermediate enlarged scale.
  • Fig. 2' is a view of the razor head in longitudinal section.
  • Fig. 3 is a view in perspective of the parts of the spider.
  • Fig. 4 is a view in perspective of the guard or blade seat so designed that they may be prefabricated from sheet steel. by. simple. stamping and bending operations.
  • The. guard; or blade. seat member as best. shown in Fig. 4 is formed of sheet metal of uniform thickness. It comprises an approximately rectangular blade seat. 10 having embossed or molded. therein an elongated diamondshaped depression 11 and provided in each end with a- T-shaped aperture 12 which. extends partly into the de-- pression. 11 and which is designed to permit thefree vertical passage of one arm of the spider as will presently be described.
  • the longitudinal edges of the blade seat member are turned downwardly to provide rounded guard flanges 13. These may be transversely'scored as shown. and partially set off from the body of the blade seat member by elongated narrow slots.
  • each of the aprons 15 is shown as having its outer surface scored and as being provided with an inwardly depressed area 16 which provides an inwardly ofiset surface.
  • the reduced neck 141 is defined by symmetrically disposed square notches 17 in the member 16 and these, as it will be seen, provide passages for the arms of the cap sec tions.
  • the blade seat member 10 is further provided with a centrally'disposed hole 18 located inthe bottom of its diamond-shapeddepression 11 and permitting passage of a stem for connection with the handle of the razor;
  • the spider comprises a two-ply longitudinal bar 20 provided with a centrally located down-turned stem 21.
  • the bar merges at both ends into flat down-turned arms 22, the bar being undercut at each end so that hooked projections are provided either of which may be engaged with the slot of a longitudinally slotted blade when it is desired to supply such a blade from a blade dispensing magazine.
  • Each of the down-turned arms 22' is provided at its lower end with a square outwardly projecting boss 23land upon each of these bosses is mounted a cross bar 24 having a centrally disposed square aperture shaped to fit the boss 23.
  • the bosses 23 terminate flush with the outer surface of the bars 24 but do not pass through them;
  • Each of the bars 24' has a wide central section in which the aperture is formed and oppositely extending arms of reduced width and each of'these terminates in an outwardly turned ear constituting. a pivot 25.
  • the parts of the spider above-described may be formed by shearing from sheet metal of uniform thickness, supplemented or preceded in the case of the cross bar 24 by a folding operation to provide the two-ply structure and a swagingoperation to form the pivots 25.
  • the cap sections 27 collectively form a, substantially rectangular blade-clamping member overlying the blade seat 10, and are notched in their meeting edges to provide clearance for the longitudinalbar 20 of the spider.
  • Each cap section 27 is provided at its opposite corners with a flat down-turned arm 28, perforated at its lower end to receive one of the pivots 25 which projects out-. wardly from the ends of the cross bars 24 of the Spider.
  • Each of the arms 28 terminates in an outwardly extend,- in ear 29 which is so located as to encounter one end of the guard flange 13 when the spider is moved upwardly.
  • the razor includes a handle 30 in the end of which is inserted a tubular metal plug 31 passed through the hole 18 of the blade seat member and spun outwardly into a flange 32, thus rotatively connecting the handle with the blade seat member.
  • the stem 21 of the spider is provided with a threaded extension 33 which is received in a correspondingly threaded socket in the plug 31. Accordingly, by rotating the handle, the spider is moved relatively up and down with respect to the blade seat, and the cap sections are correspondingly opened or closed. In these operations the razor head may be conveniently held between the thumb and forefinger of the user through the medium of the aprons 15, and these aprons completely shield the opposite ends of the spider, including the cross bars 24 and also the down-turned arms of the cap sections. The opening and closing of the cap sections and the position of the blade upon the blade seat are, therefore, completely shielded from interference.
  • the blade 40 projects at its unsharpened end edges slightly beyond the reduced necks 14 of the blade-seat member and that the rounded bend of these necks in merging into the aprons 15 provides space into which the flesh of the users thumb and forefinger may slightly bulge in grasping the ends of the blade.
  • This not only facilitates removal of a used blade, but enables the user to follow the same technique he may have practised in using a three-piece razor, that is to say, he may hold the razor head by the grips afforded by the aprons 15 in one hand after he has presented a fresh blade and turn the handle 30 with the other, all without altering his grasp on any part of the razor. And he may grasp the unsharpened ends of the blade without changing the position of his hand on the finger grips.
  • the aprons 15 back up and reinforce the points of pivotal connection between the bars 24 and the arms 28 of the cap sections.
  • the inwardly offset areas 16 correspondingly back up and reinforce the point of connection between each of the bars 24 and the down-turned arms 22 of the spider by engaging the bars in areas about the ends of the boss 23.
  • the aprons have still another useful safety function and that is they reduce the drop damage to the razor by covering the more delicate articulated parts of its structure.
  • a safety razor comprising a guard member having a blade seat, a spider movable with respect to said seat and including a downwardly extending arm at each end having an outwardly projecting lug, a cross bar carried by each of said lugs, and cap sections pivotally connected to said cross bars and having downwardly projecting portions arranged to swing over the outer faces of the cross bars.
  • a safety razor comprising a guard member having a blade seat, a spider movable with respect to said seat and including a downwardly extending arm at each end having an outwardly extending lug, a cross bar fitted at an intermediate point on each lug and having an outwardly directed pivot at each end, and cap sections having downwardly extending arms connected to said pivots and holding the cross bars from disengagement with the said lugs.
  • a safety razor comprising a blade-supporting member and a pair of overlying cap sections having integral down-turned end portions spaced to embrace the ends of said blade-supporting member, a spider movably mounted in said member, separate cross bars mounted on bosses at opposite ends of the spider and held against removal by the down-turned end portions of the cap sections, and pivotal connections between the cap sections and said cross bars.
  • a safety razor comprising a guard member having a blade seat with a longitudinal slot therein, a spider having a longitudinal bar movable through said slot and downturned arms at both ends extending below the guard member, a separate cross bar suspended at its center upon each of said arms, cap sections shaped to overlie the guard member and having downturned arms pivotally connected to the outer ends of the said cross bars, and fixed aprons holding each suspended cross bar in place by engaging it about its point of suspension.
  • a safety razor comprising a blade-seat member of sheet metal having its outer ends downturned at right angles and extended transversely, a spider movable with respect to said member and having down-turned arms presenting outwardly directed pivots, and cap sections mounted on said pivots and supported at their points of pivotal connection by sliding contact with the inner surfaces of the down-turned ends of the blade-seat member.
  • a safety razor comprising a blade-seat member of sheet metal having down-turned finger grips of substantial area at both ends, a spider movable with respect to said member, and cap sections pivotally connected to, and outwardly of, the spider and positioned within said finger grips and confined against outward displacement by movable contact with said finger grips.
  • a safety razor comprising a blade-seat member, a handle having a rotary connection with said member, a spider having a threaded connection with the handle, cap sections pivotally mounted outwardly on the ends of the spider, and sheet metal aprons of substantial area formed integrally with the blade-seat member and spaced to span the points of pivotal connection when the cap sections occupy their blade clamping position in cooperation with the blade-seat member and to make sliding engagement with said points in the movement of the cap sections to their open position.
  • a unitary safety razor having a head portion including a guard member presenting a blade seat, a spider having separate cross bars suspended at each end, cap sections pivotally connected to said cross bars, a handle rotatably connected to the guard member and having a threaded connection with the spider, and finger grips in the form of wide sheet metal aprons connected to the guard member and extending transversely across the ends of the head portion in sliding engagement with said cross bars, thus leaving the latter free for movement when the handle is rotated in opening or closing the razor.
  • a safety razor comprising a guard member, a spider, cap sections having arms pivoted to the spider outwardly thereof, and downturned aprons at each end of the guard member each having an inner surface disposed in sliding engagement with the points of pivotal connection 5 between the cap sections and the spider to back up and reinforce the same.
  • a safety razor comprising a guard member having a blade seat, a spider having separate cross bars suspended at each end thereof, cap sections shaped to overlie the guard member and having downturned arms pivotally connected to the outer ends of the said cross bars, and downturned aprons at each end of the guard member, each apron having inner surfaces disposed in sliding engagement With the points of pivotal connection between the cap sections and the spider and further each having an inwardly offset area holding each suspended cross bar in place by engaging it about its point of suspension.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Sawing (AREA)
  • Dry Shavers And Clippers (AREA)
US284114A 1952-04-24 1952-04-24 Safety razor Expired - Lifetime US2748467A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE519414D BE519414A (de) 1952-04-24
US284114A US2748467A (en) 1952-04-24 1952-04-24 Safety razor
GB7809/53A GB731992A (en) 1952-04-24 1953-03-20 Improvements in safety razor
DEG11472A DE947686C (de) 1952-04-24 1953-04-11 Rasierhobel
FR1075878D FR1075878A (fr) 1952-04-24 1953-04-15 ?asoir de sûreté
CH315964D CH315964A (de) 1952-04-24 1953-04-16 Sicherheitsrasiergerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US284114A US2748467A (en) 1952-04-24 1952-04-24 Safety razor

Publications (1)

Publication Number Publication Date
US2748467A true US2748467A (en) 1956-06-05

Family

ID=23088903

Family Applications (1)

Application Number Title Priority Date Filing Date
US284114A Expired - Lifetime US2748467A (en) 1952-04-24 1952-04-24 Safety razor

Country Status (6)

Country Link
US (1) US2748467A (de)
BE (1) BE519414A (de)
CH (1) CH315964A (de)
DE (1) DE947686C (de)
FR (1) FR1075878A (de)
GB (1) GB731992A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848807A (en) * 1956-03-19 1958-08-26 Gillette Co Safety razor with adjustable blade setting
US3050852A (en) * 1960-08-04 1962-08-28 Gillette Co Safety razor spider
US3088206A (en) * 1960-11-28 1963-05-07 Gillette Co Adjustable razor
US3362067A (en) * 1965-07-15 1968-01-09 George S. Wilson Operator-protecting safety razors
US3377701A (en) * 1967-03-09 1968-04-16 Eversharp Inc Safety razor with operating knob and stop arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200587B (en) * 1987-02-04 1990-08-08 James Denmark Improvements relating to shaving devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2048560A (en) * 1935-11-04 1936-07-21 Gillette Safety Razor Co Safety razor
US2060520A (en) * 1935-10-16 1936-11-10 Gillette Safety Razor Co Safety razor
US2264323A (en) * 1937-06-19 1941-12-02 Monnet Georges Safety razor
US2547704A (en) * 1947-10-09 1951-04-03 Hoberg Paul Safety razor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2018560A (en) * 1932-02-24 1935-10-22 Levane Robert Apparatus for issuing gummed strip paper
NL37083C (de) * 1933-08-02
US2397617A (en) * 1945-02-28 1946-04-02 Gillettge Safety Razor Company Safety razor
US2569167A (en) * 1948-08-26 1951-09-25 Jay T Hellmann Safety razor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2060520A (en) * 1935-10-16 1936-11-10 Gillette Safety Razor Co Safety razor
US2048560A (en) * 1935-11-04 1936-07-21 Gillette Safety Razor Co Safety razor
US2264323A (en) * 1937-06-19 1941-12-02 Monnet Georges Safety razor
US2547704A (en) * 1947-10-09 1951-04-03 Hoberg Paul Safety razor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848807A (en) * 1956-03-19 1958-08-26 Gillette Co Safety razor with adjustable blade setting
US3050852A (en) * 1960-08-04 1962-08-28 Gillette Co Safety razor spider
US3088206A (en) * 1960-11-28 1963-05-07 Gillette Co Adjustable razor
US3362067A (en) * 1965-07-15 1968-01-09 George S. Wilson Operator-protecting safety razors
US3377701A (en) * 1967-03-09 1968-04-16 Eversharp Inc Safety razor with operating knob and stop arrangement

Also Published As

Publication number Publication date
FR1075878A (fr) 1954-10-20
CH315964A (de) 1956-09-15
GB731992A (en) 1955-06-15
DE947686C (de) 1956-08-23
BE519414A (de)

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