EP0985549B1 - Taille-crayon - Google Patents

Taille-crayon Download PDF

Info

Publication number
EP0985549B1
EP0985549B1 EP99118154A EP99118154A EP0985549B1 EP 0985549 B1 EP0985549 B1 EP 0985549B1 EP 99118154 A EP99118154 A EP 99118154A EP 99118154 A EP99118154 A EP 99118154A EP 0985549 B1 EP0985549 B1 EP 0985549B1
Authority
EP
European Patent Office
Prior art keywords
housing
knife blade
blade
sharpener
fixed
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
EP99118154A
Other languages
German (de)
English (en)
Other versions
EP0985549A1 (fr
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.)
KUM Ltd
Original Assignee
KUM Ltd
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 KUM Ltd filed Critical KUM Ltd
Publication of EP0985549A1 publication Critical patent/EP0985549A1/fr
Application granted granted Critical
Publication of EP0985549B1 publication Critical patent/EP0985549B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L23/00—Sharpeners for pencils or leads
    • B43L23/08—Sharpeners for pencils or leads in which the pencils or leads are sharpened mainly by rotational movement against cutting blades

Definitions

  • the invention relates to a sharpener with a housing and therein a guide channel, into which an insertion opening for a pen opens, and with an im Area of a housing contact surface fixed knife blade.
  • Such a sharpener is used in particular as a cosmetic sharpener Regeneration and shaping of the tip of a cosmetic pencil as required or a cosmetic mine.
  • Such cosmetic sharpeners are mostly called so-called Container sharpener trained. This is on the muzzle base or insertion opening one end for the opposite end of the housing Chip cap pushed on or clipped on to accommodate the pointed waste serves.
  • Such cosmetic sharpeners are usually in the idle state like a Protective cap on the end of use of a cosmetic stick or a cosmetic lead fixed to the end of use of the pen, especially its lead, shield against the environment when not in use. That from housing and if necessary, existing ensemble attached to the housing therefore ideally has the outline shape of a protective cap, as e.g. also used for pens to cover the tip of the lead when not in use becomes.
  • this protective cap is often also provided with a clip for hanging in a pocket, e.g. into the inside pocket of a piece of clothing.
  • clips can also be used for cosmetic sharpeners that are not in use the function of a protective cap for the mine end take.
  • Cosmetic pencils are usually in when not in use by the user Bags, bags, cases or the like stored. The environmental protection is opposite there the end of use or the mine of particular importance.
  • the knife blade required in such a sharpener usually exists made of a metallic material, e.g. from a tempering steel.
  • the normally knife blade having the shape of an elongated flat cuboid is sharpened on one longitudinal flank to form a knife edge.
  • this knife blade is centered on the housing fixed with a single screw. The screw penetrates the knife blade in the area of a through hole.
  • the basic structure of such Spitzers with a screw-fixed knife blade is known from EP 0 078 512 A1.
  • a minimum screw diameter required for strength reasons is required however, a certain minimum width of the essentially flat cuboid Knife blade. Otherwise, the through hole would be significant Weaken the inherent strength of the knife blade. Especially in Midrange, d. H.
  • the knife blade experiences in the passage area of the fixing screw the highest stress when tipping, because there the highest cutting forces occur. This is the responsibility of the cosmetic pencils, which are usually made of wood Part of the knife blade is peeling off the wooden frame, which is significantly higher Cutting forces are required as the shape of the lead used in cosmetic pencils in the Is generally of a soft consistency.
  • Knife blade Because of the minimum width required for the central screw fixation Knife blade that is used results in a sharpener housing with in Inner region of a hollow conical guide channel in the peripheral region of the conical foot a space problem if a space-saving construction of the sharpener is sought becomes. Because of the design, the knife blade points in this area the same width as in the central area provided with the screw hole. The is also desirable or necessary for strength reasons, because of this The middle area of the sheath of the pen, which is usually made of wood generates the highest cutting pressure. There, the knife blade therefore has the record the highest reaction pressure. Therefore, one would be as close as possible to the location Fixation of the knife blade helpful, as it is usually arranged in the middle Fastening screw hardly applied due to space problems can be, if the space-saving construction mentioned is aimed.
  • the object of the invention is therefore to save space Construction of the sharpener an advantageous and safe way of fixing the knife blade to accomplish on the housing.
  • a two-point fixation of the knife blade at both ends d. H. a knife fixation on both ends is provided, only in the area of the radial internal and therefore less problematic with regard to the space problem
  • a separate fixing agent on the inside end of the knife blade as a fixing point, in particular a screw is used. Due to the very close positioning e.g. B. a screw connection is the housing of the screw head within the jacket area of the pointed case unproblematic.
  • Knife blade In the area near the outer end of the insertion opening for the pin insertion or the outer end of the knife blade, however, is clamped Knife blade on the housing itself without a separate, additional fixative, like a screw with its head disturbing the circumference of the pointed case would stand out. There the knife blade with its outer end jammed behind a projection fixed to the housing. This is done through generation a bending stress in fixing the inner end of the knife blade by this in the area of the outer end around a bending edge at the transition between a hollow cylindrical area and a hollow conical area of the guide channel to be led.
  • the knife blade is either flat or to generate a positive preload - based on the housing contact surface - Convex in the initial state.
  • the housing-fixed projection is expediently in one piece with which Housing integral component executed and forms a receiving pocket.
  • the knife blade In front tightening the inside or outside of the knife blade is the knife blade with its outer end or outer end only in the housing or receiving pocket essentially in the axial direction approximately parallel to the longitudinal axis of the guide channel to insert.
  • the one penetrating the inner end of the knife blade is Fixing screw in front of the cone tip of the hollow-conical channel area and thus inevitably particularly far outside the guide channel positioned from the peripheral jacket of the sharpener housing.
  • the screw head of the fixing screw does not cause any space problems and on the other hand does not hinder the undisturbed flow of peeling waste through the Rake face of the knife blade.
  • the sharpener 1 is used for sharpening a soft lead pencil 2, one inside of a wooden jacket 3 contains soft lead 4.
  • the sharpener 1 has a housing 5 with a guide channel 6, which is open in two places. It is The pin 2 can be inserted via an insertion opening or mouth base 7. To the The guide channel has an insertion opening 7 adjacent in the insertion direction 8 6 first a hollow cylindrical region 6a, in which the jacket 3 of the Pin 2 is guided freely rotatable. The actual guidance of the pin 2 takes place, however, in a front, in the hollow cylindrical region 6a in Insertion direction 8 adjoining hollow conical region 6b, the Outline shape corresponds to the conical tip 9 of the pin 2.
  • the guide channel 6 is also open in this hollow-conical region 6b namely along an incline towards its central axis 10 Longitudinal flank that forms a housing system or housing contact surface 11.
  • the Knife blade 13 is in the fixing position with its outer end 14 from the outside thereof 15 ago by a housing-fixed projection 16 pressurized.
  • the housing-fixed Projection 16 forms on the loading side 16a of the outer end 14 of the knife blade 13 facing away from the outside 16b a part of the Housing 5 or its jacket 17th
  • the knife blade 13 is in contact with the housing 5 screw-fixed that the outer end 14 pressed against the projection 16 from the inside becomes.
  • the projection 16 fixed to the housing and the housing contact surface 11 positioned for the knife blade 13 such that the knife blade 13 in Fixing position is under a bending stress.
  • the bending stress is generated through a bearing point or bending edge 19 on the outside of the guide channel 6 at its transition from the hollow cylindrical region 6a to the hollow cone Area 6b is formed. This can be seen comparatively clearly from FIG. 2.
  • a fixing screw 22 is in the longitudinal direction of the knife blade 13 flanking Housing opening 12 next to this and off-center (Fig. 3) and in particular in front the cone tip 6c, d. H. positioned outside the guide channel 6 (Fig. 1).
  • the Knife blade 13 itself is then positioned next to the central axis 10 and covered partially the housing opening 12 (Fig. 3), through which the tip of the pin 2 generated chip fails.
  • the knife blade 13 is first used the outer end 14 pushed under the housing-fixed projection 16. This is shown in Figure 2 by the dashed knife contour. Forms in this position the knife blade 13 with the bearing surface outside of the projection 16 15 on the housing 5 an acute angle a, which can be very small.
  • a the angle
  • the clamping pressure at the outer end 14 of the Knife blade 13 generated so that it is then in the housing system between the both fixing points is under a bending stress. This affects the entire length of the knife blade 13 stabilizing it.
  • the outer end 14 of the knife blade 13 is clamped by tightening the fixing screw 22.
  • With increasing pivoting caused by tightening the fixing screw 22 the knife blade 13 clockwise around the bending edge 19 and thus around the Bearing point of the outer end 14 increases the jamming of the knife blade there 13 below the projection 16.
  • the screw-fixed knife blade 13 then affects the hollow-conical region 6b of the guide channel 6 for the Pin 2.
  • a chip cap 25 is shown, which is opposite to the direction of insertion 8 and thus in the longitudinal direction of the sharpener 1 can be pushed onto the housing 5. In the pushed-on position, the chip cap 25 closes the peripheral area the knife blade 13 to form a chip chamber hermetically.

Landscapes

  • Drawing Aids And Blackboards (AREA)

Claims (6)

  1. Taille-crayon comportant un boítier (5) et un canal de guidage (6) présent dans ce boítier et dans lequel débouche une ouverture d'introduction (7) pour un crayon (2), et comportant une lame de coupe (13) fixée au voisinage d'une surface d'application (11) du boítier,
    dans lequel le canal de guidage (6) comporte une partie de forme cylindrique creuse (6a) s'étendant à partir de l'ouverture d'entrée (7), et une partie de forme conique creuse (6b) qui jouxte la partie précédente en formant une arête de flexion (19), et
    dans lequel la lame de coupe (13) est retenue au moyen d'un système de fixation en deux points d'une part sur son extrémité (4) et d'autre part sur son extrémité intérieure (10) située à l'opposé de l'extrémité supérieure, et est soumise, dans la position de fixation, à une contrainte de flexion, par le fait que l'extrémité extérieure (14) est guidée au-dessous d'une partie saillante (16) solidaire du boítier et que l'extrémité intérieure (18) est fixée sur le boítier (5) moyennant un fléchissement de la lame de coupe (13) autour de l'arête de flexion (19).
  2. Taille-crayon selon la revendication 1, caractérisé en ce que l'extrémité intérieure (18) de la lame de coupe (13) est fixée sur le boítier (5), à l'extérieur d'une pointe conique (6c), située à l'opposé de l'arête de flexion (19), de la partie de forme conique creuse (6b).
  3. Taille-crayon selon la revendication 1 ou 2, caractérisé par un logement de réception (20) du boítier (5), qui est ouvert en direction du canal de guidage (6) et entoure l'extrémité extérieure (14) de la lame de coupe (13) et forme, avec un bord extérieur (25), la partie saillante (16) solidaire du boítier.
  4. Taille-crayon selon l'une des revendications 1 à 4, caractérisé en ce que la surface d'application (11) du boítier est inclinée, dans la partie de forme conique creuse (6b), en direction de l'axe médian (10) du canal de guidage (6), et qu'une vis de fixation (22) pour l'extrémité intérieure (18) de la lame de coupe (13) est fixée à côté de l'axe médian (10).
  5. Taille-crayon selon la revendication 4, caractérisé en ce que la surface d'application (11) du boítier comporte une ouverture de flanquement (12).
  6. Taille-crayon selon l'une des revendications 1 à 4, caractérisé par un capuchon (25) de réception de rognures pouvant être emmanché sur le boítier (5), à l'opposé d'un dispositif de guidage (8) pour le crayon (2).
EP99118154A 1998-09-12 1999-09-11 Taille-crayon Expired - Lifetime EP0985549B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19841730A DE19841730A1 (de) 1998-09-12 1998-09-12 Spitzer
DE19841730 1998-09-12

Publications (2)

Publication Number Publication Date
EP0985549A1 EP0985549A1 (fr) 2000-03-15
EP0985549B1 true EP0985549B1 (fr) 2001-02-07

Family

ID=7880709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118154A Expired - Lifetime EP0985549B1 (fr) 1998-09-12 1999-09-11 Taille-crayon

Country Status (3)

Country Link
US (1) US6279237B1 (fr)
EP (1) EP0985549B1 (fr)
DE (2) DE19841730A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050005459A1 (en) * 2003-06-27 2005-01-13 Donaldson Joseph K. Carpenter's pencil sharpener
US20050145086A1 (en) * 2004-01-05 2005-07-07 Mohr Monte D. Combination pencil sharpener bottle cap
WO2011134116A1 (fr) * 2010-04-30 2011-11-03 温州可为文具科技有限公司 Taille-crayon à lame hélicoïdale
US8656600B2 (en) * 2010-05-03 2014-02-25 Walter F Hammer Pencil sharpener configured to work with a power drill
CN102963195A (zh) * 2012-12-11 2013-03-13 四川大学 一种同向双刀片铅笔刀
CN108357265B (zh) * 2018-04-04 2024-02-23 三木控股集团有限公司 一种卷笔刀架

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822994A (en) 1931-03-17 1931-09-15 Louis M Markowitz Pencil attachment
US2143797A (en) 1935-04-29 1939-01-10 Edward V Powell Pencil sharpener
US2309194A (en) 1941-10-25 1943-01-26 Charles W Hutchinson Lead pointing device
US2366928A (en) 1944-01-07 1945-01-09 Anthon H Paschell Pencil sharpener
DE3041313C2 (de) 1980-11-03 1983-12-08 Christian Eisen & Sohn, Metallwarenfabrik, 8523 Baiersdorf Spitzer, insbesondere Schreibstift-Spitzer
US4406315A (en) * 1981-02-20 1983-09-27 Collier Bros. Pencil sharpener
US4506716A (en) * 1981-10-29 1985-03-26 Yumi Tsukuni Pencil sharpener
DE3812252C1 (en) 1988-04-13 1989-03-23 Moebius & Ruppert, 8520 Erlangen, De Sharpener
DE3932586A1 (de) 1988-04-13 1991-05-29 Moebius & Ruppert Spitzer
US4934057A (en) * 1988-04-27 1990-06-19 Chao Wen K Multi-blade pencil-core sharpener
DE4000122A1 (de) * 1990-01-04 1991-07-11 Eisen C & Sohn Spitzer
US5379817A (en) * 1994-03-03 1995-01-10 O'neil; Edmund Sharpener for a soft element pencil
DE19636438A1 (de) * 1996-09-07 1998-03-12 Kum Gmbh & Co Kg Kunststoff Un Spitzer insbesondere für Weichminenstifte
US5774995A (en) * 1996-10-24 1998-07-07 Ross; Richard M. Candle sharpening system

Also Published As

Publication number Publication date
EP0985549A1 (fr) 2000-03-15
DE59900042D1 (de) 2001-03-15
DE19841730A1 (de) 2000-03-23
US6279237B1 (en) 2001-08-28

Similar Documents

Publication Publication Date Title
DE69528501T2 (de) Osteosynthetische Stiftvorrichtung
WO2006050841A1 (fr) Outils d'ebarbage pour ebarber des trous de faible diametre
DE2608809C3 (de) Spitzbohrwerkzeug
DE8138696U1 (de) Schreibgeraet
EP0983870B1 (fr) Taille-crayon pour crayons à mine tendre
DE6943669U (de) Schreibgeraet.
EP0985549B1 (fr) Taille-crayon
EP2409854A2 (fr) Taille-crayon, notamment pour un crayon cosmétique ou pharmaceutique
DE3019970A1 (de) Fraesmaschinenspindel
DE1603808C3 (de) Pulverkraftbetriebenes Bolzensetzgerät mit einem Bolzen und einem hülsenförmigen Teil
DE1602843A1 (de) Vorrichtung zum Festlegen eines Scheidplaettchens an einem Schneidwerkzeugtraeger
DE202007015220U1 (de) Vorrichtung zum lösbaren Verspannen eines Werkzeugschaftes in einem Aufnahmekörper einer Werkzeugmaschine
DE2447431B2 (de) Fuellminenstift mit verschiebbarer mine
EP1759876B1 (fr) Taille-crayon
EP1598215B1 (fr) Taille-crayon pour un crayon
DE2425500C3 (de) Verfahren zur Herstellung von Schreibdochten
DE4304910A1 (de) Ventilanordnung für Zeichenstifte
DE2648320C3 (de) Verfahren zum Einsetzen eines Spitzelementes in eine Aufnähmebohrung eines Füllminenstiftes
DE599638C (de) Stahlhalter
DE69002023T2 (de) Regel- und Feststelleinrichtung, insbesondere für Zeichnerzirkel.
DE856113C (de) Druckfuellstift
DE202020101416U1 (de) Vorrichtung zum Spitzen von Stiften mit spitzbarer Umhüllung, Minen und Kreiden
DE1603938C3 (de) Spannvorrichtung zum Halten von Rohren
DE1938405A1 (de) Klemmstahlhalter,insbesondere fuer Lochwendeplatten
DE202004019816U1 (de) Taschenschleifwerkzeug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19991223

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IE IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20000403

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

AKX Designation fees paid

Free format text: DE FR GB IE IT

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IE IT

REF Corresponds to:

Ref document number: 59900042

Country of ref document: DE

Date of ref document: 20010315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010402

ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: CA

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20030922

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040913

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120920

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130911

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59900042

Country of ref document: DE

Representative=s name: TERGAU & WALKENHORST PATENTANWAELTE PARTGMBB, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20150923

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20150925

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160911

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170925

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59900042

Country of ref document: DE

Representative=s name: TERGAU & WALKENHORST PATENTANWAELTE PARTGMBB, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 59900042

Country of ref document: DE

Owner name: LUETTGENS, FRITZ, DR., DE

Free format text: FORMER OWNER: KUM LTD., TRIM, CO. MEATH, IE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59900042

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190402