EP0465739B1 - Schneidewerkzeug für Papierblätter - Google Patents

Schneidewerkzeug für Papierblätter Download PDF

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Publication number
EP0465739B1
EP0465739B1 EP90307535A EP90307535A EP0465739B1 EP 0465739 B1 EP0465739 B1 EP 0465739B1 EP 90307535 A EP90307535 A EP 90307535A EP 90307535 A EP90307535 A EP 90307535A EP 0465739 B1 EP0465739 B1 EP 0465739B1
Authority
EP
European Patent Office
Prior art keywords
paper
liquid
barrel
end portion
instrument according
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
EP90307535A
Other languages
English (en)
French (fr)
Other versions
EP0465739A1 (de
Inventor
Hisao Kai
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.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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 Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Priority to EP90307535A priority Critical patent/EP0465739B1/de
Priority to DE69014106T priority patent/DE69014106T2/de
Priority to CA002021008A priority patent/CA2021008C/en
Publication of EP0465739A1 publication Critical patent/EP0465739A1/de
Application granted granted Critical
Publication of EP0465739B1 publication Critical patent/EP0465739B1/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
    • B26B27/00—Hand cutting tools not provided for in the preceding groups, e.g. finger rings for cutting string, devices for cutting by means of wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00—Combinations of writing implements with other articles
    • B43K29/18—Combinations of writing implements with other articles with hand tools, e.g. erasing knives

Definitions

  • the present inventor has studied a cutting pen which may be used like an ordinary writing pen relative to a leaf of paper and, simultaneously, may be used for cutting the paper leaf along the writing locus by tensioning or pressing the paper leaf.
  • an object of the invention is to provide a paper leaf cutting instrument which is capable of scratching a leaf of paper under a somewhat large writing pressure to supply moisture to such an extent that the paper may be made fragile, immediately thereafter, scratching the wet portion, and then cutting the paper, when necessary, simply by tensioning the paper without adversely affecting the outer appearance of the paper.
  • the instrument may be normally used as a writing instrument.
  • the expanding/opening means is a blade which extends axially from the barrel means in the same direction and for substantially the same distance as the liquid absorbent and compressible means and the blade is in contact with a side surface of the liquid absorbent and compressible means.
  • the "wetting end portion” refers to a tip end portion of a water-absorbent property and compressible material, the tip end portion being exposed from the barrel means.
  • the other end of the wetting end portion comes into contact with the liquid accommodated in the barrel and is always wetted to form a wetting end portion.
  • the liquid of the barrel portion is always supplied to the wetting end portion. It is preferable to use writing liquid, such as ink, as the liquid for wetting the paper because the instrument may be also used as a writing instrument.
  • the assembly of fiber may supply a sufficient amount of moisture due to the capillary phenomenon of the fiber forming the material, even if the assembly is concentrated at high density.
  • the assembly of fiber is durable in service life.
  • the end of the wetting end portion can be so shaped that it is cut on a slant at from about 30 to 80 degrees, preferably at about 40 to 80 degrees, in order to carry out writing even when the instrument is slightly slanted in the same manner as the writing instrument for supplying the writing liquid.
  • the periphery of the wetting end portion can be surrounded in a ring shape by the paper leaf expanding/opening portion having the paper leaf expanding/opening blade projecting like a needle.
  • a ring of hard material from which the expanding/opening blade is formed then surrounds the wetting end portion.
  • the expanding/opening blade is formed so as to project from the ring.
  • the end of the blade is sharpened like a needle and is finished to have a flat smooth surface so as to slide well on the paper surface.
  • a sharp inverted V-shaped top as a tip end of the expanding/opening blade.
  • the corner portion (indicated by reference numeral 7 in Fig. 4) actually works as a weakened linear machined portion.
  • the ring and expanding/opening blade of the paper leaf expanding/opening portion and made of material, which is hard and dense, such as stainless, brass, other non-corroding metal, ceramics and the like.
  • the expanding/opening blade requires a strength of 150 to 200 g, which is larger than that of an average absolute writing pressure of 60 g, which is applied to a conventional writing instrument.
  • the ring of the proximal portion of the paper leaf expanding/opening portion be inserted into the barrel portion. By inserting the proximal portion of the ring into the barrel portion in this manner, the wetting end portion and the paper leaf expanding/opening portion are fixed together without fail.
  • wetting end portion extends substantially in the same length as the end of the expanding/opening blade in an axial direction of the barrel portion, as shown in Fig. 2.
  • the paper leaf cutting instrument When the instrument is used for cutting the paper leaf, in order to make the paper fragile in a linear manner, the paper leaf cutting instrument should be held in an upright condition as much as possible and the writing should be performed while imparting downwards the somewhat stronger pressure to the writing instrument, in conformity with a desired line. In this case, the pressure causes the water-absorbent and compressible material to be compressed to provide a large amount of liquid. As a result, the paper is sufficiently wet to be fragile. Keeping on the writing operation, as shown in Fig. 3, the wetting end portion is compressed to be substantially shorter than the expanding/opening blade, and the inverted V-shaped expanding/opening blade pushes and opens the paper fibers of the paper made fragile by the moisture provided from the end portion, thus cutting a part of the fiber.
  • a flow rate of the writing liquid from the wetting end portion is in the range of 0.3 g/m to 1.6 g/m.
  • a wetting liquid may be filled directly into a cavity of the barrel portion, or otherwise may be absorbed into the water-absorbing material, such as a sponge, inserted into the barrel.
  • the proximal portion of the wetting end portion which communicates with the liquid supply portion containing a liquid to wet the paper surface and is accommodated or held in the barrel portion is surrounded by the ring-like hard element, and the expanding/opening blade projects from the ring-like hard element.
  • the tip end of the wetting end portion is compressed to thereby supply a large amount of liquid for wetting the paper surface.
  • the corner portion of the expanding/opening blade whose end is sharpened in the form of an inverted V-shape as shown in Fig.
  • the ring made of hard material only surrounds the proximal end portion of the wetting end portion. Thus, the ability of the wetting end portion to supply water is not obstructed.
  • Fig. 1 is a side view of an embodiment of a cutting instrument in accordance with the invention, in which reference numeral 1 denotes a barrel portion of the cutting instrument, and reference numeral 2 denotes a wetting end portion which has a diameter of about 3 mm and which is made, e.g., of polyester fiber, its top end is cut at about 70 degrees.
  • Reference numeral 3 denotes a paper leaf expanding/opening portion which surrounds the wetting end portion 2 at a proximal end portion thereof. The wetting end portion 2 is inserted into a distal end of the barrel portion 1 and is fixed therein while being surrounded at the proximal portion 4.
  • the wetting end portion 2 optionally extends into the barrel portion and serves as a wick in controlling fluid flow from the barrel to a paper surface.
  • An expanding/opening blade 5 is provided in intimate contact with an outer longest portion of the wetting end portion 2, which is obliquely cut at its distal end.
  • the proximal portion 4 may be in the form of a ring which is slightly opened and discontinuous at one end as shown in Fig. 4, or otherwise may be in the form of a closed ring 4B, as shown in Fig. 6 (in accordance with another embodiment of the invention).
  • the distal end of the wetting end portion 2 is substantially projected to the same length as the expanding/opening blade 5.
  • the tip end of the expanding/opening blade 5 projects in the form of an inverted V-shape in a cross section thereof as shown in Fig. 4.
  • Reference numeral 6 denotes a projecting portion.
  • a corner portion of the projecting portion 6 serves as a cutting portion 7 which expands or opens and partially cuts fiber of the wetted portion of the paper and which actually works to make the paper fragile.
  • the wetting end portion 2 is surrounded in a ring by the paper leaf expanding/opening portion 3. Also, it is possible to manufacture the instrument by inserting the wetting end portion 2 into the paper leaf expanding/opening portion 3B made in a ring shape in advance as shown in Fig. 6.
  • the internal structure of the barrel portion is the same as that of a conventional writing instrument so that colored writing liquid is supplied to the wetting end portion 2.
  • a supply rate of the writing liquid is, e.g., at 1 g/100 m when the writing operation is alway performed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Pens And Brushes (AREA)

Claims (9)

  1. Trennwerkzeug für Papierblätter mit:
    - einer Zylindereinrichtung (1) zum Aufnehmen und Speichern einer Zuführflüssigkeit, welche Zylindereinrichtung ein Benetzungsende aufweist;
    - einer Flüssigkeit absorbierenden und zusammendrückbaren Einrichtung (2) am Benetzungsende der Zylindereinrichtung zum Transportieren von Flüssigkeit von der Flüssigkeitszuführung, und die sich von innerhalb der Zylindereinrichtung über das Benetzungsende der Zylindereinrichtung hinaus erstreckt; und
    - einer Papierblatt-Auseinanderdrück/Öffnen-Einrichtung;
    dadurch gekennzeichnet, daß die Papierblatt-Auseinanderdrück/Öffnen-Einrichtung eine Klinge (5) aufweist, die sich axial von der Zylindereinrichtung (1) aus in derselben Richtung und im wesentlichen über denselben weg wie die Flüssigkeit absorbierende und zusammendrückbare Einrichtung (2) erstreckt, welche Klinge (5) in Kontakt mit einer Seitenfläche der Flüssigkeit absorbierenden und zusammendrückbaren Einrichtung (2) steht.
  2. Werkzeug nach Anspruch 1, bei dem die Papierblatt-Auseinanderdrück/Öffnen-Einrichtung auch über ein Spitzenende verfügt, das entfernt von der Zylindereinrichtung (1) liegt und das mit V-förmigem Querschnitt übersteht.
  3. Werkzeug nach Anspruch 2, bei dem das Spitzenende geschliffen ist.
  4. Werkzeug nach einem der Ansprüche 1 bis 3 in Kombination mit einer Flüssigkeitszuführung in der Zylindereinrichtung (1) und bei dem die Flüssigkeit eine wasserlösliche Tinte ist.
  5. Werkzeug nach einem der Ansprüche 1 bis 4, bei dem die Papierblatt-Auseinanderdrück/Öffnen-Einrichtung auch über einen proximalen, ringförmigen Endabschnitt (4) verfügt, der an einer Stelle unterbrochen ist.
  6. Werkzeug nach Anspruch 5, bei dem der proximale Endabschnitt (4) in das Benetzungsende der Zylindereinrichtung (1) eingesetzt ist und von diesem gehalten wird.
  7. Werkzeug nach einem der Ansprüche 1 bis 6, bei dem die Flüssigkeit absorbierende und zusammendrückbare Einrichtung über einen Endabschnitt verfügt, der unter einem Winkel von 30 bis 80° bezogen auf die Zylindereinrichtung (1) geneigt ist, um einen Schreibendabschnitt zu bilden, und bei dem die längere Seite des Endabschnitts mit der Flüssigkeit absorbierenden und zusammendrückbaren Einrichtung in Kontakt mit der Klinge (5) steht.
  8. Werkzeug nach einem der Ansprüche 1 bis 7, bei dem die Flüssigkeit absorbierende und zusammendrückbare Einrichtung aus einer Faseranordnung besteht.
  9. Werkzeug nach einem der Ansprüche 1 bis 8, bei dem die Flüssigkeit absorbierende und zusammendrückbare Einrichtung dazu dient, Flüssigkeit aus der Zylindereinrichtung (1) mit einer Strömungsrate im Bereich von 0,3 bis 1,6 g/100 m zu führen.
EP90307535A 1990-07-10 1990-07-10 Schneidewerkzeug für Papierblätter Expired - Lifetime EP0465739B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP90307535A EP0465739B1 (de) 1990-07-10 1990-07-10 Schneidewerkzeug für Papierblätter
DE69014106T DE69014106T2 (de) 1990-07-10 1990-07-10 Schneidewerkzeug für Papierblätter.
CA002021008A CA2021008C (en) 1990-07-10 1990-07-12 Paper leaf cutting instrument

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP90307535A EP0465739B1 (de) 1990-07-10 1990-07-10 Schneidewerkzeug für Papierblätter
CA002021008A CA2021008C (en) 1990-07-10 1990-07-12 Paper leaf cutting instrument

Publications (2)

Publication Number Publication Date
EP0465739A1 EP0465739A1 (de) 1992-01-15
EP0465739B1 true EP0465739B1 (de) 1994-11-09

Family

ID=25674200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90307535A Expired - Lifetime EP0465739B1 (de) 1990-07-10 1990-07-10 Schneidewerkzeug für Papierblätter

Country Status (3)

Country Link
EP (1) EP0465739B1 (de)
CA (1) CA2021008C (de)
DE (1) DE69014106T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10899031B2 (en) * 2015-08-10 2021-01-26 Perry Teri Toys, Llc System for material application and cutting

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE257550C (de) * 1911-07-05
US1519816A (en) * 1923-02-05 1924-12-16 Leonard S Ward Letter opener
JPS62104900U (de) * 1985-12-23 1987-07-04

Also Published As

Publication number Publication date
CA2021008A1 (en) 1992-01-13
DE69014106T2 (de) 1995-03-23
CA2021008C (en) 1996-11-19
DE69014106D1 (de) 1994-12-15
EP0465739A1 (de) 1992-01-15

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