EP0073853A2 - Rasierapparat - Google Patents

Rasierapparat Download PDF

Info

Publication number
EP0073853A2
EP0073853A2 EP81109396A EP81109396A EP0073853A2 EP 0073853 A2 EP0073853 A2 EP 0073853A2 EP 81109396 A EP81109396 A EP 81109396A EP 81109396 A EP81109396 A EP 81109396A EP 0073853 A2 EP0073853 A2 EP 0073853A2
Authority
EP
European Patent Office
Prior art keywords
platform
cap
blade
portions
blade means
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.)
Granted
Application number
EP81109396A
Other languages
English (en)
French (fr)
Other versions
EP0073853B1 (de
EP0073853A3 (en
Inventor
Robert Anthony Trotta
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23151782&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0073853(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Priority to AT81109396T priority Critical patent/ATE20710T1/de
Publication of EP0073853A2 publication Critical patent/EP0073853A2/de
Publication of EP0073853A3 publication Critical patent/EP0073853A3/en
Application granted granted Critical
Publication of EP0073853B1 publication Critical patent/EP0073853B1/de
Expired 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
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit

Definitions

  • the invention relates to wet shaving systems and is directed more particularly to a low-cost highly maneuverable wet shaving device.
  • plastic shaving head having blades fixed therein include US-A-3,703,764, US-A-3,724,070, and US-A-4,026,016. While such recent examples have been eminently successful, there is, as always, a need for such products which are less expensive to manufacture and offer improved functional characteristics.
  • a further object of the invention is to provide a shaving implement utilizing narrow blade means disposed between the cap and platform portions and retained therebetween.
  • a feature of the present invention is the provision of a shaving implement comprising a platform portion, a back portion upstanding from a lengthwise margin of the platform portion, a cap portion extending from the back portion and overlying the platform portion, end walls interconnecting the back, cap and end wall portions being an integrally molded plastic unit, the cap portion being adapted, in an unstressed state, to incline toward the platform portion to a first position, and blade means permanently disposed between the cap and platform portions and adjacent the back portion, the blade means stressing the cap portion and retaining the cap portion in a second position further removed from the platform portion than the first position, the cap portion thereby exercising a clamping pressure on the blade means.
  • an illustrative housing 2 includes a platform portion 4.
  • a back portion 6 upstands from a lengthwise margin of the platform portion 4, and a cap portion 8 extends forwardly from the back portion 6 to overlie the platform portion.
  • the housing further includes leg portions extending forwardly from the platform portion and joining a guard portion 12 which is disposed parallel to the back portion 6.
  • the housing is further provided with end walls 14, 16 interconnecting the back and guard portions at - the ends of the housing.
  • the cap portion 8.in an unstressed state (FIGS. 3 and 4) is adapted to incline toward the platform portion 4 to a first position.
  • the cap portion is sufficiently flexible to receive a blade means therebeneath, the blade means stressing the cap portion to a second position (FIG. 8) further removed from the platform portion than the first position.
  • the cap portion thereby exercises a clamping pressure on the blade means.
  • the cap portion 8 may comprise a series of spaced, aligned, forwardly extending fingers 18.
  • the platform portion may be provided with a series of spaced, aligned recesses 20, the recesses being separated by platform rib portions 22.
  • each of the fingers 18 is disposed over one of the recesses 20 and each of the rib portions 22 is in alignment with a space between two of the fingers 18.
  • the entire housing, and at least the platform back, cap and portions is of molded plastic and is molded as an integral unit.
  • the fingers 18 are in effect leaf springs adapted to flex to receive a blade means between the fingers and the platform and further serve to urge the blade means against an upper surface 24 of the platform portion.
  • the end walls 14, 16 are provided with inwardly extending projections 26 which are opposed to each other, as seen in FIGS. 1 and 2.
  • the projections provide an additional blade means retention facility.
  • Each projection includes a forward surface 28 extending from the end wall on which the projection is mounted obliquely to a side surface 30.
  • a rear surface 32 interconnects the rearward edge of the side surface and the end wall surface.
  • Each of the fingers 18 include a guide surface 34, serving to guide a blade means into the gap, or pocket, formed by the platform and back portion and the fingers. As noted above, the fingers 18 are formed such that while extending forwardly, the fingers also extend slightly downwardly, as viewed in FIGS. 3 and 4, or toward the platform surface 24.
  • a blade means suitable for use with the above-described housing includes a first blade 44 having a cutting edge 46, the the blades 40, 44 being fixed to either side, respectively, of a spacer member 50.
  • the spacer member 50 includes an elongated central portion 52 and end portions 54 extending forwardly of a frontal edge 56 of the central portion 52 and having outwardly-facing notches 58 therein adapted to receive the projections 26.
  • the notches 57 are defined in part by extensions 60, each having a cam surface 62, an outer surface 64, and a notch surfache 66.
  • the blade means including the first blade 40, spacer 50, and second blade 44, is inserted between the fingers 18 and the upper surfaces 24 of the rib portions 22, the finger guide surfaces 34 guiding and urging the blade means into place.
  • the cam surface 62 engages the projection forward surface 28.
  • Continued pressure on the blade means causes the extensions 60 to override the projections 26, with the notches 58 coming to rest about the projections 26, as seen in FIG. 6.
  • the blade and spacer portions of the blade means are retained in position relative to each other solely by the pressure thereon exercising by the cap portion 8 and are otherwise not attached to each other. There being no rivet connecting means, it will be apparent that the width of the blade is not a critical factor and a very narrow blade, less than 1/10 inch from the cutting edge to rearward edge, may be used.
  • the housing may be provided with means for attachment to a razor handle. While such means may comprise the well known groove means disclosed in the aforementioned U.S. Patent 3,724,070, or journal bearing means as disclosed in the aforementioned U.S. Patent No. 4,026,016, in the embodiment shown in FIGS. 1 - 4, the housing is provided with connecting means 70 adapted to be engaged by a razor handle 80.
  • the handle 80 may be of the type permanently connected to the housing 2, or may be of the type selectively connected and disconnected to and from the handle.
  • the present invention is by no means limited to the particular construction herein disclosed and/or shown in the drawings, but also comprises any modifications or equivalents within the scope of the disclosure.
  • the blade means need not comprise a plurality of components, but may instead comprise a single blade 40 disposed between the platform and cap portions 4, 8 of the unit, as illustrated in FIG. 10 of the drawings.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Semiconductor Lasers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Led Devices (AREA)
  • Dry Shavers And Clippers (AREA)
  • Scissors And Nippers (AREA)
EP81109396A 1981-09-03 1981-10-30 Rasierapparat Expired EP0073853B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109396T ATE20710T1 (de) 1981-09-03 1981-10-30 Rasierapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29872781A 1981-09-03 1981-09-03
US298727 1981-09-03

Publications (3)

Publication Number Publication Date
EP0073853A2 true EP0073853A2 (de) 1983-03-16
EP0073853A3 EP0073853A3 (en) 1983-07-20
EP0073853B1 EP0073853B1 (de) 1986-07-16

Family

ID=23151782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109396A Expired EP0073853B1 (de) 1981-09-03 1981-10-30 Rasierapparat

Country Status (3)

Country Link
EP (1) EP0073853B1 (de)
AT (1) ATE20710T1 (de)
DE (1) DE3174937D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073852B1 (de) * 1981-09-03 1985-02-06 The Gillette Company Rasierapparat

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2335547A (en) * 1940-12-11 1943-11-30 Richard H Smith Safety razor
US3852883A (en) * 1973-01-23 1974-12-10 Warner Lambert Co Shaving unit for safety razor
US3940853A (en) * 1974-04-19 1976-03-02 The Gillette Company Shaving unit with blade tensioning means
GB1593979A (en) * 1978-05-30 1981-07-22 Gillette Co Safety razor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073852B1 (de) * 1981-09-03 1985-02-06 The Gillette Company Rasierapparat

Also Published As

Publication number Publication date
EP0073853B1 (de) 1986-07-16
DE3174937D1 (en) 1986-08-21
EP0073853A3 (en) 1983-07-20
ATE20710T1 (de) 1986-08-15

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