EP1104344B1 - Durchflusswegwerfrasierer mit langem griff - Google Patents

Durchflusswegwerfrasierer mit langem griff Download PDF

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Publication number
EP1104344B1
EP1104344B1 EP99939094A EP99939094A EP1104344B1 EP 1104344 B1 EP1104344 B1 EP 1104344B1 EP 99939094 A EP99939094 A EP 99939094A EP 99939094 A EP99939094 A EP 99939094A EP 1104344 B1 EP1104344 B1 EP 1104344B1
Authority
EP
European Patent Office
Prior art keywords
connection
razor
handle
cartridge
features
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
EP99939094A
Other languages
English (en)
French (fr)
Other versions
EP1104344A4 (de
EP1104344A1 (de
Inventor
Jeff Wonderley
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.)
American Safety Razor Co
Original Assignee
American Safety Razor Co
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
Application filed by American Safety Razor Co filed Critical American Safety Razor Co
Publication of EP1104344A1 publication Critical patent/EP1104344A1/de
Publication of EP1104344A4 publication Critical patent/EP1104344A4/de
Application granted granted Critical
Publication of EP1104344B1 publication Critical patent/EP1104344B1/de
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
    • B26B21/40—Details or accessories
    • B26B21/52—Handles, e.g. tiltable, flexible
    • B26B21/521—Connection details, e.g. connection to razor heads
    • 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
    • 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
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges

Definitions

  • the present invention relates generally to a razor and more specifically, to a disposable razor cartridge/handle arrangement which features a through flow feature and a snap together structure which enables a snug fit and stable mounting.
  • connection mechanism which permits the cartridges to be interchanged also tends to permit a small amount of play between the handle and the cartridge which leads to a slightly wobbly connection being perceived by the user. This tends to reduce the level of confidence in the user who is expecting a nice rigid connection so that precise placement of the blades against the area being shaved can be anticipated with a high degree of expectation.
  • a first aspect of the invention resides in a razor comprising: a handle; and a disposable cartridge.
  • the disposable cartridge has a pair of snap action connection features which are formed in a predetermined spaced relationship on a lower surface of a platform portion of the cartridge, each of the connection features having a projecting connection portion which is oriented toward the other, each of the connection features being separated by essentially flat surface portions which extends from one of the connection features toward the other across the lower surface of the platform.
  • the handle on the other hand, is formed with: angled projections at the ends of a connection head portion which are adapted to engage the connection portions and deflect the corresponding connection feature as they pass thereby and assume positions wherein flat mating surfaces formed adjacent the angled projections, abut the essentially flat surface portions formed on the lower surface of the platform portion, and engaging surfaces which are respectively formed behind the angle projections for receiving the connection portions of the pair of connection features.
  • crush ribs are formed on the platform portion of the disposable cartridge. These crush ribs are formed on an underside surface of each of the connection portion so as to engage a snap engaging surface in a manner which deforms the crush ribs and provides an interference fit between each of the connection features of the disposable cartridge and the engaging surfaces of the handle.
  • the snap engaging surface is, in an embodiment, defined by a shoulder which is formed behind the angled projections.
  • Each of the above mentioned crush ribs has a contact surface which extends at predetermined angle with respect to the contact portion and has an first edge which is unitary with the underside surface of a connection portion and a second edge which is unitary with an inner wall surface of the connection feature which merges with underside surface of the connection portion at a predetermined angle.
  • the portion of the platform portion which is located between the connection features is sufficiently flexible as to flex when the angled projections at the ends of a connection head portion engage and deflect the corresponding connection action feature as they pass thereby.
  • each of the snap action features are flexible and flex when the angled projections at the ends of a connection head portion engage and deflect the respective connection feature.
  • the platform portion is formed with openings into which the angled projection are received after passing by the connection portions formed on the connection features.
  • the handle is provided with abutment members which are respectively located adjacent the angled projections and which have flat front surfaces adapted to abut corresponding flat surface portions which are formed on the platform portion of the cartridge.
  • the platform portion of the cartridge mentioned above is formed with a plurality of ribs and wherein a leading edge portion of the handle head is formed with a protrusion which engages portions of the ribs in a manner which deforms the ribs and establishes an interference fit.
  • Another feature of the above arrangement resides in a water passage structure formed in the platform portion; a first blade mounted directly on the platform section; a spacer disposed on the first blade; a second blade disposed on the spacer; and a flow opening or openings formed in one of the first blade and the spacer which is in flow communication with the water passage structure for permitting water to flow between the first and second blades in a manner which flushes the space therebetween.
  • a second aspect of the present invention resides in a razor comprising a handle having: angled projections formed on a connection head portion and adapted to engage and deflect connection features formed on a disposable cartridge as the angle projections pass by the connection features; flat surface portions formed adjacent the angled projections which are adapted to abut essentially flat surface portions on the cartridge, and engaging surfaces which are respectively formed behind the angle projections for receiving connection portions of the connection features of the cartridge.
  • a third aspect resides in a razor comprising a disposable cartridge having: connection features which are formed in a predetermined spaced relationship on the cartridge, the connection features having barb-like portions which are: a) adapted to be deflected by angled deflecting members formed on a handle adapted for use with the cartridge, and b) arranged to engage shoulder portions formed on the handle in a predetermined spatial relationship with the angled deflecting members; and flat surface portions which are formed proximate the connection features and which are adapted to abut, in a face-to-face relationship, flat portions formed on the handle.
  • crushable features are associated with the connection features and are arranged to be distorted when the connection features engage the shoulder portions in a manner which produces an interference fit.
  • a passage means is formed in the cartridge for transmitting a flow of water between a plurality of blades supported in the cartridge.
  • a plurality of ribs which engage a protrusion formed on the handle define interference fit means which rigidifies the interconnection between the cartridge and the handle.
  • Figs. 1-16 show an embodiment of the present invention.
  • the fully assembled cartridge 200 which is adapted to be releasably mounted on a suitable handle 100, comprises, as best seen in Fig. 9, a platform 202, flexible blades 203, 204 and spacer 206, which separates the blades 203, 204, and a cap member 208 which is rigidly connected to the platform 202 by way of integral fastening rivet portions (not shown) which extend down from a lower surface thereof.
  • the handle 100 in this embodiment is of the long handle type.
  • a channel structure is formed in the cartridge to permit water to flow between the blades 203, 204 during a cleaning operation which can be carried out either from time to time during shaving or at the completion thereof.
  • This channel structure includes a passage 212 which is formed in the platform 202, and a series of transfer openings or passages 214 which are, in this instance. formed in lower blade 203. This arrangement permits water to flow either down through the opening defined between the two blades 203, 204, and out through the passage 210 or vice versa, or both.
  • This flow causes the debris (cut beard stubble, flakes of the upper epidermal layer, etc.) to be flushed away from the blades, ensuring that they remain well exposed for clean shaving and/or adequate removal of the extraneous material after the shaving process has been completed.
  • This through-flow feature is combined with an engagement arrangement, which, as best seen in Fig. 8, is such as to include a pair of snap action engagement or connection features 216. These features 216 are formed so as to be sufficiently flexible as to enable them to be deflected out of the way as a result of engagement with tapered projections 101 provided on the handle 100 and which pass by the engagement portions during handle/cartridge interconnection.
  • connection features 216 can be rendered relatively inflexible and instead the cartridge 200 can be constructed as to be flexible to the degree that the platform bows as the connection features are driven outwardly by the interaction between the connection features 216 and the tapered projections 101.
  • a combination of the flexure of the connection features with a small amount of bowing of the cartridge can be used to provide the desired amount of force/displacement, necessary to produce the requisite docking resistance and subsequent snap action interlocking.
  • connection features 216 have barb-like engagement members or pawls 218 formed at their free ends while the head of the handle 100, on which the tapered projections 101 are formed, is formed with shoulder portions 102 on which the engagement members 218 can seat once the tapered projections 101 have been forced sufficiently past the rounded head portion of each engagement member 218.
  • the surfaces on the engagement members 218 and the shoulders 102 which are arranged to actually abut one another in a fully interconnected state are essentially flat.
  • Abutment members 106 formed at the front of the handle head are, in this embodiment, such as to merge with the inboard edges of the tapered projections 101 and have flat front surfaces 106A which are arranged to abut against flat surface portions located on the cartridge platform 202A at locations just inboard of the openings 220 which are formed immediately adjacent the inboard edges of the connection features 216 and which are adapted to accommodate the tapered projections in the manner illustrated in Fig. 8.
  • This face-to-face abutment between opposed flat surfaces, in combination with the locking action which is achieved between the engagement members 218 and the shoulders 102, is such as to promote a very rigid handle/cartridge interconnection.
  • this embodiment is additionally provided with members which shall be referred to crush ribs 222.
  • these crush ribs 222 take the form of web-like members which are arranged, as shown in Figs 10 and 12, for example, to interconnect an inner wall portion 216A of an engagement feature 216 with the flat engaging underside surface 218A of the barb-like engagement member 218.
  • the thickness of these crush ribs 222 is small and these features can be "crushed" as the interconnection between the shoulders 102 and the engagement members 218 occurs. This crushing action produces an interference fit which tends to eliminate even the smallest amount of play between the handle 100 and the cartridge 200.
  • the contact surface of the crush rib 222 is arranged to extend at an angle of about 45° in this embodiment while the ribs 222 themselves are arranged normal to the side surface 216A of the connection features and normal to the underside surface 218A of the engagement members 218.
  • each of these angles can be changed in order to endow a directional bias on the interference effect when the rib 222 is crushed.
  • the shape and angling of the crush rib 222 can be used to produce a bias which can apply a pressure between the handle and the cartridge and thus used to compensate/eliminate any play that may be perceived between the two elements.
  • the present embodiment features the provision of a protrusion 108 at the leading edge of the head of the handle 100 in the manner depicted in Fig. 6.
  • This protrusion 108 is adapted to engage a plurality of ribs 224 (see Figs. 13 and 16) formed in the cartridge platform 202, in a manner which generates an interference fit as the abutment members 106 enter and seat in channel-like spaces defined between a rib 224 and a projection 226 formed opposite the rib 224 (see Fig. 7).

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Claims (9)

  1. Rasierapparat, aufweisend:
    einen Handgriff (100); und
    eine Wegwerf- bzw. Einwegpatrone (200), wobei
    die Einwegpatrone (200) ein Paar von Schnappwirkungs-Verbindungsmerkmalen (216) aufweist, welche in einer vorbestimmten, beabstandeten Beziehung an einer unteren Fläche eines Plattformbereichs (202) der Patrone (200) gebildet sind, wobei jedes der Verbindungsmerkmale (216) einen vorstehenden Verbindungsbereich (218) aufweist und jedes der Verbindungsmerkmale (216) durch im Wesentlichen flache bzw. ebene Flächenbereiche getrennt sind, die sich von einem der Verbindungsmerkmale (216) in Richtung zu dem anderen quer über bzw. zu der unteren Fläche der Plattform (202) erstrecken, und wobei:
    der Handgriff (100) versehen ist mit:
    winkligen bzw. abgewinkelten Vorsprüngen (101) an den Enden eines Verbindungskopfbereichs, welche dazu befähigt sind, mit den Verbindungsbereichen (218) in Eingriff zu kommen und das entsprechende Verbindungsmerkmal (216) abzulenken bzw. abzubiegen, wenn sie an diesem vorbei gehen und Positionen einnehmen, in denen flache zusammenpassende Flächen (106), die benachbart bzw. angrenzend an die winkligen Vorsprünge (101) gebildet sind, an die im Wesentlichen flachen Flächenbereiche anschlagen bzw. anstoßen, die an der unteren Fläche des Plattformbereichs (202) gebildet sind, und
    Eingriffs bzw. Angriffsflächen (102), welche jeweils hinter den winkligen Vorsprüngen (101) gebildet sind, um die Verbindungsbereiche (218) des Paares der Verbindungsmerkmale (216) aufzunehmen, wobei vorstehende Verbindungsbereiche (218) an den Verbindungsmerkmalen (216) in Richtung zueinander hin orientiert sind und Quetschrippen (222) an einer unterseitigen Fläche jedes der Verbindungsbereiche (218) so gebildet sind, um mit einer Schnappeingriffsfläche in einer Art und Weise in Eingriff zu kommen, welche die Quetschrippen (222) verformt und eine Presspassung bzw. -sitz zwischen jedem der Verbindungsmerkmale (216) der Einwegpatrone (200) und den Eingriffsflächen des Handgriffs (100) ergibt.
  2. Rasierapparat, wie in Anspruch 1 angegeben, dadurch gekennzeichnet, dass jede Quetschrippe (222) eine Kontaktfläche aufweist, die sich unter einem vorbestimmten Winkel in Bezug auf den Verbindungsbereich (218) erstreckt und einen ersten Rand, welcher mit der unterseitigen Fläche eines Verbindungsbereichs (218) unitär bzw. einheitlich ist, und einen zweiten Rand aufweist, welcher mit einer inneren Wandfläche des Verbindungsmerkmals (216) unitär bzw. einheitlich ist und welcher mit der unterseitigen Fläche des Verbindungsbereichs unter einem vorbestimmten Winkel verschmilzt bzw. zusammengeführt ist.
  3. Rasierapparat, wie in Anspruch 1 oder Anspruch 2 angegeben, dadurch gekennzeichnet, dass die Schnappeingriffsfläche durch eine Schulter (102) definiert ist, welche hinter den winkligen Vorsprüngen (101) gebildet ist.
  4. Rasierapparat, wie in einem der vorhergehenden Ansprüche angegeben, dadurch gekennzeichnet, dass der Bereich bzw. Abschnitt des Plattformbereichs, welcher Abschnitt zwischen den Verbindungsmerkmalen (216) angeordnet ist, genügend flexibel bzw. biegsam ist, um sich zu biegen, wenn die winkligen Vorsprünge (101) an den Enden eines Verbindungskopfbereichs mit dem entsprechenden Verbindungsmerkmal (216) in Eingriff kommen und dieses Verbindungsmerkmal (216) abbiegen, wenn sie an diesem vorbei gehen.
  5. Rasierapparat, wie in einem der Ansprüche 1, 2 oder 3 angegeben, dadurch gekennzeichnet, dass jedes der Verbindungsmerkmale (216) flexibel bzw. biegsam ist und sich verbiegt, wenn die winkligen Vorsprünge (101) an den Enden eines Verbindungskopfbereichs mit dem entsprechenden Verbindungsmerkmal (216) in Eingriff kommen und dieses Verbindungsmerkmal (216) abbiegen.
  6. Rasierapparat, wie in einem der vorhergehenden Ansprüche angegeben, dadurch gekennzeichnet, dass der Plattformbereich (202) mit Öffnungen (220) versehen ist, in welchen die winkligen Vorsprünge (101) nach Vorbeigehen an den Verbindungsbereichen (218) aufgenommen werden, die an den Verbindungsmerkmalen (216) gebildet sind.
  7. Rasierapparat, wie in einem der vorhergehenden Ansprüche angegeben, dadurch gekennzeichnet, dass der Handgriff (100) mit Anschlagelementen (106) versehen ist, welche jeweils angrenzend bzw. benachbart zu den winkligen Vorsprüngen (101) angeordnet sind und welche flache bzw. ebene Stirnflächen aufweisen, die dazu befähigt sind, an entsprechenden flachen Flächenbereichen anzuschlagen, welche an dem Plattformbereich (202) der Patrone gebildet sind.
  8. Rasierapparat, wie in einem der vorhergehenden Ansprüche angegeben, dadurch gekennzeichnet, dass der Plattformbereich (202) mit einer Mehrzahl von Rippen (224) versehen ist, und bei dem ein vorderer Randbereich des Handgriffkopfes mit einem Vorsprung (108) versehen ist, welcher mit Bereichen der Rippen (224) in einer Art und Weise in Eingriff kommt, welche die Rippen (224) verformt und eine Presspassung bzw. -sitz zwischen diesen erzeugt.
  9. Rasierapparat, wie in einem der vorhergehenden Ansprüche angegeben, ferner gekennzeichnet durch:
    eine Wasserdurchgangsstruktur bzw. -ausbildung (212), die in dem Plattformbereich (202) gebildet ist;
    eine erste Klinge bzw. Messer (203), das unmittelbar an dem Plattformabschnitt (202) angebracht ist;
    ein Abstandsstück (206), das an der ersten Klinge (203) angeordnet ist;
    eine zweite Klinge bzw. Messer (204), das an dem Abstandsstück (206) angeordnet ist; und
    eine in einem oder beiden von der ersten Klinge (203) und dem Abstandsstück (206) gebildete Strömungsöffnung (214), welche in Strömungsverbindung mit einem Durchgang (210) der Wasserdurchgangsstruktur (212) steht, welche in dem Plattformbereich (202) gebildet ist, um es Wasser zu erlauben, zwischen der ersten und der zweiten Klinge in einer Art und Weise zu strömen, welche den Raum zwischen diesen spült bzw. ausspült.
EP99939094A 1998-08-11 1999-08-10 Durchflusswegwerfrasierer mit langem griff Expired - Lifetime EP1104344B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9619298P 1998-08-11 1998-08-11
US96192P 1998-08-11
PCT/US1999/018002 WO2000009299A1 (en) 1998-08-11 1999-08-10 Long handle flow through disposable razor

Publications (3)

Publication Number Publication Date
EP1104344A1 EP1104344A1 (de) 2001-06-06
EP1104344A4 EP1104344A4 (de) 2002-11-06
EP1104344B1 true EP1104344B1 (de) 2004-03-17

Family

ID=22256235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99939094A Expired - Lifetime EP1104344B1 (de) 1998-08-11 1999-08-10 Durchflusswegwerfrasierer mit langem griff

Country Status (6)

Country Link
EP (1) EP1104344B1 (de)
AR (1) AR014078A1 (de)
AT (1) ATE261799T1 (de)
AU (1) AU5344699A (de)
DE (1) DE69915640D1 (de)
WO (1) WO2000009299A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2356571A1 (en) * 2000-10-27 2002-04-27 Vincent Cosmo Motta Shaving systems with handle to razor head attachment mechanism and methods of performing same
GB2495073B (en) * 2011-09-08 2013-08-14 Robert Brett Woolfson Razor handles
BR112015014790B1 (pt) * 2012-12-21 2022-04-05 Bic-Violex Sa Aparelho de barbear, cartucho para ser usado com um aparelho de barbear e conjunto de cabeça e cabo para um aparelho de barbear
KR101703514B1 (ko) 2016-06-24 2017-02-07 주식회사 도루코 면도기

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094063A (en) * 1976-12-15 1978-06-13 The Gillette Company Razor assembly with pivotally mounted cartridge
US4270268A (en) * 1979-12-07 1981-06-02 The Gillette Company Razor blade assembly
US4833779A (en) * 1987-06-30 1989-05-30 American Safety Razor Company Platform, handle and shield for safety razor
GB8717216D0 (en) * 1987-07-21 1987-08-26 Gillette Co Safety razors

Also Published As

Publication number Publication date
WO2000009299A1 (en) 2000-02-24
ATE261799T1 (de) 2004-04-15
AR014078A1 (es) 2001-01-31
AU5344699A (en) 2000-03-06
EP1104344A4 (de) 2002-11-06
DE69915640D1 (de) 2004-04-22
EP1104344A1 (de) 2001-06-06

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