EP0827844A1 - Spitzer insbesondere für Weichminenstifte - Google Patents
Spitzer insbesondere für Weichminenstifte Download PDFInfo
- Publication number
- EP0827844A1 EP0827844A1 EP97106956A EP97106956A EP0827844A1 EP 0827844 A1 EP0827844 A1 EP 0827844A1 EP 97106956 A EP97106956 A EP 97106956A EP 97106956 A EP97106956 A EP 97106956A EP 0827844 A1 EP0827844 A1 EP 0827844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sharpener
- housing
- tip
- housing projection
- rib
- 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
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 for soft lead pencils, in particular for cosmetic pencils (DE 38 24 883 C2).
- Such a sharpener contains one that is usually molded in one piece from plastic
- Pointed housing has a guide channel that narrows conically in the direction of insertion for the front end of the pen.
- This freedom is with you Sharpener of the type mentioned above open at the top and bottom.
- This freedom is in the known sharpener to the mine tip through a web-like facade knife delimited with an arched edge.
- a triangular cross-sectional shape this web should be in common with the up and down open training of said free space, a real cutting of the mine enable them to be shaped and avoid scraping.
- the freedom prevents the cutting chips of the mine from being affected their problematic, soft consistency in the event of a jam for smearing would tend.
- DE-U-80 07 479 is a pointed box for the truncated cone Pointing the lower shaft end of candles is known to the candle foot too insert into smaller-sized receiving openings of candle holders can.
- the conical guide channel for the candle foot is in with this jar Slotted lengthways.
- One of the two flanks is like a scraper knife equipped with a wedge-shaped cross section.
- the chisel tip of the The cross-sectional shape is essentially tangential to the guide cone into the jar.
- the worn candle mass slides on the along the slot-side flank and falls without further guidance on the outside the channel wall into a receptacle.
- the resulting shape on Candlestick takes place in the circumferential area of the candle shaft.
- the invention has for its object a sharpener of the aforementioned Art to improve in that even when scraping the tip of the mine through the barrel knife and without a triangular triangular Cross-sectional shape of a cutting edge also designed web-like one unproblematic chip removal is guaranteed. This task is by claim 1 solved.
- the wedge-like shape of the tangential to the circumference of the mine tip effective scraper rib with a wedge angle of about a maximum of 45 ° and an effective rake angle of the shaping edge of at least 45 ° causes the scraped or lifted mine mass as unbroken in itself Chip initially in an approximately tangential direction with only a slight deflection is lifted from the surface of the mine and by the in said Rake angle located rake face experiences only a slight deflection, which, however already at a short distance from the scraping edge to lift the chip leads from the rake face of the scraper rib.
- the chip keeps its inner connection for example in the manner of a lamella or shaving chip.
- the sharpener consists essentially of the sharpener housing 1 and one therein 2 in the direction of insertion conically narrowing guide channel for the front end of pin 3. On the sharpener housing there is first a tangent to the guide channel (not shown in more detail) employed sharpener 4 available. Since it is here is primarily about the shaping of the mine tip 5, are the arrangement of the sharp knife 4 no further details are devoted below.
- a one-piece housing projection in the embodiment according to FIGS. 1-3 7 substantially radially inwards.
- the housing projection 7 is used for Shape of the mine tip 5 in the manner of a template. He's wearing his Mine tip 5 facing flank 8 a narrow, approximately wedge-shaped in cross section and with the wedge tip 9 in to the circumference of the mine tip 5 essentially tangential effective direction 10 protruding scraper rib 11.
- This has a Wedge angle 12 of approximately ⁇ 70 °, preferably of ⁇ 45 °.
- This forms the Scraper rib 11 has a rake angle 13 of approximately 20 20 °, preferably ⁇ 45 °.
- the surface 14 of the housing projection 7 which carries the scraper rib 11 is formed as chip former and / or chip guide of the flow chip 15.
- the formation can as a trough radial to the pin axis 16 in the direction of the circumference of the sharpener housing 1 or in the insertion direction 17.
- Of the Rotary arrow 17 indicates the direction of the pin 3.
- the housing projection 7 projects in the axial direction against the direction of insertion 2 from the side of the housing head 18 ago the mine tip 5 counter.
- the housing projection 7 is as a flat, sheet-like housing part bent in accordance with the mentioned recess.
- the housing projection 7 here carries a steering rib 19 on its surface Forming of the flow chip 15.
- the housing 1 can also carry a cleaning stick, in spite of the good laxative effect compared to the flow chip15 remove adhering scraping chips.
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
Description
- Fig. 1
- eine schematische Perspektivansicht des Spitzergehäuses mit lediglich dem zur Formgebung der Minenspitze dienenden, die Schaberippe tragenden Gehäusevorsprung,
- Fig. 2
- einen schematischen Querschnitt entsprechend der Linie II-II durch den Spitzer gemäß Fig. 1,
- Fig. 3
- eine vergrößerte Darstellung der wesentlichen Funktionsteile des Spitzers,
- Fig. 4
- eine Darstellung analog Fig. 1 einer modifizierten Ausführungsform, bei der der Gehäusevorsprung zusätzlich eine Spanlängsrippe trägt,
- Fig. 5
- eine Darstellung analog Fig. 2 der Ausführungsform gemäß Fig. 4,
- Fig. 6
- eine Darstellung analog Fig. 3 der Ausführungsform gemäß den Fig. 4 und 5.
- 1
- Spitzergehäuse
- 2
- Einführungsrichtung
- 3
- Stift
- 4
- Spitzermesser
- 5
- Minenspitze
- 6
- Freiraum
- 7
- Gehäusevorsprung
- 8
- Flanke
- 9
- Keilspitze
- 10
- Wirkrichtung
- 11
- Schaberippe
- 12
- Keilwinkel
- 13
- Spanwinkel
- 14
- Oberfläche
- 15
- Fließspan
- 16
- Stiftachse
- 17
- Drehpfeil
- 18
- Gehäusekopf
- 19
- Lenkrippe
Claims (7)
- Spitzer insbesondere für Weichminenstifte mit einem Spitzergehäuse (1) und darineinem sich in Einführungsrichtung (2) konisch verengenden Führungskanal für das Vorderende des Stiftes (3),einem tangential zum Führungskanal angestellten Spitzermesser (4) undeinem in Einführungsrichtung (2) an den Führungskanal angrenzenden, für die Aufnahme der Minenspitze (5) bestimmten Freiraum (6),-- in welchen ein Gehäusevorsprung (7) zur Formgebung der Minenspitze (5) nach Art einer Schablone hineinkragt,
daß der Gehäusevorsprung (7) an seinem Ende eineschmale,im Querschnitt etwa keilförmige undmit der Keilspitze (9) in zum Umfang der Minenspitze (5) im wesentlichen tangentialer Wirkrichtung (10) über den Gehäusevorsprung (7) hinausstehende - Spitzer nach Anspruch 1,
gekennzeichnet durch
einen Keilwinkel (12) der Schaberippe (11) von etwa ≤ 70° vorzugsweise etwa ≤ 45°. - Spitzer nach Anspruch 1 oder 2,
gekennzeichnet durch
einen Spanwinkel (13) der Schaberippe (11) von etwa ≥ 20°, vorzugsweise ≥ 45°. - Spitzer nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die die Schaberippe (11) tragende Oberfläche (14) des Gehäusevorsprunges (7) als Spanformer und/oder Spanlenker eines Fließspans (15) ausgeformt ist. - Spitzer nach Anspruch 4,
gekennzeichnet durch
eine in Richtung zum Umfang des Spitzergehäuses und/oder in Axialrichtung (2) des Führungskanals von der Kanal- bzw. Minenspitze (5) weggerichtete Ausmuldung der Oberfläche des Gehäusevorsprunges (7). - Spitzer nach einem der Ansprüche 4 oder 5,
dadurch gekennzeichnet,
daß die Oberfläche des Gehäusevorsprunges (7) mindestens eine Lenkrippe (19) für den Fließspan (15) trägt. - Spitzer nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der Gehäusevorsprung mit dem Spitzergehäuse (1) einstückig ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29723552U DE29723552U1 (de) | 1996-09-07 | 1997-04-26 | Spitzer, insbesondere für Weichminenstifte |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19636438 | 1996-09-07 | ||
DE19636438A DE19636438A1 (de) | 1996-09-07 | 1996-09-07 | Spitzer insbesondere für Weichminenstifte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0827844A1 true EP0827844A1 (de) | 1998-03-11 |
EP0827844B1 EP0827844B1 (de) | 1999-02-17 |
Family
ID=7804962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97106956A Expired - Lifetime EP0827844B1 (de) | 1996-09-07 | 1997-04-26 | Spitzer insbesondere für Weichminenstifte |
Country Status (3)
Country | Link |
---|---|
US (1) | US5894669A (de) |
EP (1) | EP0827844B1 (de) |
DE (2) | DE19636438A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1070601A1 (de) | 1999-07-23 | 2001-01-24 | KUM Limited | Spitzer, insbesondere für Weichminenstifte |
CN106079988A (zh) * | 2016-02-04 | 2016-11-09 | 宁海县金益文具有限公司 | 用于素描笔的削笔器 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6065514A (en) * | 1998-02-27 | 2000-05-23 | New; Mary A. | Compact handheld battery-operated cosmetic pencil sharpener |
DE19831903A1 (de) * | 1998-07-16 | 2000-01-27 | Moebius & Ruppert | Spitzer für Weichminenstifte, insbesondere für Kosmetikstifte |
DE19841730A1 (de) * | 1998-09-12 | 2000-03-23 | Kum Gmbh & Co Kg Kunststoff Un | Spitzer |
US6574875B2 (en) | 2000-07-12 | 2003-06-10 | Carroll Vernon Lawson | Pencil sharpener and method |
DE10209192B4 (de) * | 2002-03-04 | 2006-04-20 | Eisen Gmbh | Weichminenspitzer mit verschwenkbarem Fassonmesser |
EP1396352B9 (de) * | 2002-08-29 | 2005-06-15 | KUM Limited | Selbstreinigender Stift |
US20040261275A1 (en) * | 2003-06-27 | 2004-12-30 | Hunt Holdings, Inc. | Sharpener for creating a frusto-conical tip |
US7472728B1 (en) | 2005-06-08 | 2009-01-06 | Beauty Points, Inc. | Electrically powered rapid sharpening cosmetic pencil sharpener |
DE502005004758D1 (de) * | 2005-09-01 | 2008-08-28 | Kum Ltd | Stiftspitzer |
US20080000094A1 (en) * | 2006-07-03 | 2008-01-03 | Guanghui Tong | Pencil sharpener with a small limitation |
CN101386245A (zh) * | 2008-10-31 | 2009-03-18 | 郑朝勇 | 卷笔刀切削刀片 |
CN101844475B (zh) * | 2010-03-17 | 2011-12-21 | 煜日升电子(深圳)有限公司 | 手摇式铅笔刨 |
DE102010031915A1 (de) * | 2010-07-22 | 2012-01-26 | Kum Ltd. | Spitzer, insbesondere für einen kosmetischen oder pharmazeutischen Stift |
US20120233867A1 (en) * | 2011-03-15 | 2012-09-20 | Choon Nang Energy Equipment Mfy., Ltd. | Pencil sharpener with two blades |
CN103085552A (zh) * | 2013-01-07 | 2013-05-08 | 四川大学 | 多刀片铅笔刀 |
CN107618303B (zh) * | 2017-09-22 | 2023-06-06 | 温州市佰思德笔业有限公司 | 一种软质铅芯的铅芯刨 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1268019B (de) * | 1963-07-03 | 1968-05-09 | Klebes & Co K G A | Spitzer |
DE3824883A1 (de) * | 1988-07-22 | 1990-02-01 | Eisen C & Sohn | Spitzer fuer weichminenstifte |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE433640C (de) * | 1925-05-07 | 1926-09-03 | Paul Moebius Fa | Bleistiftspitzer mit aus einem scheibenfoermigen Koerper bestehenden Messer |
US2106963A (en) * | 1935-06-12 | 1938-02-01 | Morris L Ullman | Pencil sharpener |
US2366928A (en) * | 1944-01-07 | 1945-01-09 | Anthon H Paschell | Pencil sharpener |
DE1236374B (de) * | 1962-04-28 | 1967-03-09 | Klebes & Co K G A | Spitzer fuer ummantelte Stifte mit weicher Mine |
US4248283A (en) * | 1979-11-26 | 1981-02-03 | Lowell Kaye | Cosmetic pencil sharpener |
DE8007479U1 (de) * | 1980-03-19 | 1980-07-03 | Inex Handelsgesellschaft Und Industrievertretungen Mbh, 6143 Lorsch | Geraet mit einer dose zum spitzen von gegenstaenden |
DE3737863C1 (en) * | 1987-11-07 | 1988-08-18 | Moebius & Ruppert | Sharpener for pencils with a soft lead |
DE4000122A1 (de) * | 1990-01-04 | 1991-07-11 | Eisen C & Sohn | Spitzer |
US5046876A (en) * | 1990-08-24 | 1991-09-10 | Robert Boraca | Safety tipped pencil and sharpener therefor |
DE4440271B4 (de) * | 1994-11-11 | 2005-08-18 | Möbius & Ruppert | Spitzer mit verstellbarem Fassonmesser für Stifte mit weicher Mine |
US5699620A (en) * | 1996-12-11 | 1997-12-23 | Pentech International Inc. | Apparatus for sharpening crayon marking instruments to form an improved arcuate safety marking tip |
-
1996
- 1996-09-07 DE DE19636438A patent/DE19636438A1/de not_active Withdrawn
-
1997
- 1997-04-26 DE DE59700090T patent/DE59700090D1/de not_active Expired - Lifetime
- 1997-04-26 EP EP97106956A patent/EP0827844B1/de not_active Expired - Lifetime
- 1997-09-04 US US08/923,581 patent/US5894669A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1268019B (de) * | 1963-07-03 | 1968-05-09 | Klebes & Co K G A | Spitzer |
DE3824883A1 (de) * | 1988-07-22 | 1990-02-01 | Eisen C & Sohn | Spitzer fuer weichminenstifte |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1070601A1 (de) | 1999-07-23 | 2001-01-24 | KUM Limited | Spitzer, insbesondere für Weichminenstifte |
CN106079988A (zh) * | 2016-02-04 | 2016-11-09 | 宁海县金益文具有限公司 | 用于素描笔的削笔器 |
Also Published As
Publication number | Publication date |
---|---|
DE19636438A1 (de) | 1998-03-12 |
DE59700090D1 (de) | 1999-03-25 |
US5894669A (en) | 1999-04-20 |
EP0827844B1 (de) | 1999-02-17 |
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