EP0089303A1 - Klingenhalter und Einsteller für Schneidinstrument - Google Patents

Klingenhalter und Einsteller für Schneidinstrument Download PDF

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Publication number
EP0089303A1
EP0089303A1 EP83440019A EP83440019A EP0089303A1 EP 0089303 A1 EP0089303 A1 EP 0089303A1 EP 83440019 A EP83440019 A EP 83440019A EP 83440019 A EP83440019 A EP 83440019A EP 0089303 A1 EP0089303 A1 EP 0089303A1
Authority
EP
European Patent Office
Prior art keywords
carriage
notch
trolley
leaf spring
head
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.)
Withdrawn
Application number
EP83440019A
Other languages
English (en)
French (fr)
Inventor
Louis Scandella
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.)
Stanley Mabo SA
Original Assignee
Stanley Mabo SA
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 Stanley Mabo SA filed Critical Stanley Mabo SA
Publication of EP0089303A1 publication Critical patent/EP0089303A1/de
Withdrawn legal-status Critical Current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
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/002—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use segmented blades

Definitions

  • the present invention relates to a carriage for advancing and blocking the blade of a cutting instrument, of the type comprising a separable blade capable of sliding in a sheath under the action of said device, said sheath having a longitudinal opening in which said carriage slides, said longitudinal opening comprising on at least one of its edges a notch intended to cooperate on the one hand with at least one elastic element for positioning the advance and locking carriage and on the other hand with at least one blocking element cooperating with the notch, the positioning element and the blocking element being able to be erased by manual pressure from the user.
  • Japanese patent 405,718 already discloses a feed and blocking carriage comprising a ratchet spring blade cooperating with a toothing of the sheath in which the separable blade moves.
  • the device of the request 80-13209 is of excessively complex design which is a drawback at the level of the manufacturing and the cost price, as well as at the level of the use, because one thus increases the risks of malfunction .
  • the device of Japanese patent 405,718 is not effective enough to ensure real locking of the blade in position, the spring disappearing due to the traction carried out on the blade during the cutting movement or accidentally simply of the user support socket on the handle of the tool and therefore on the movement button.
  • the object of the invention is to overcome these various drawbacks and to propose a feed and blocking carriage for a cutting instrument blade ("cutter") of simpler design and ensuring effective and automatic blocking of the blade when it has been positioned and the user no longer requests the carriage.
  • a cutting instrument blade cutter
  • a carriage for advancing and blocking the blade of a cutting instrument of the type comprising a fractionable blade capable of sliding in a sleeve under the action of said carriage, said sleeve having a longitudinal opening in which said carriage slides, said longitudinal opening comprising on at least one of its edges a notch intended to cooperate on the one hand with at least one elastic element for positioning the advance carriage and for blocking and on the other hand with at least one blocking element cooperating with the notch, the positioning element and the blocking element which can be erased by manual pressure of the user, characterized in that it essentially comprises on the one hand a leaf spring arranged in the body of the carriage having a head projecting laterally relative to said body of the carriage and ensuring the positioning of the carriage by cooperation of the head of the leaf spring with a notch of the notch and on the other hand a locking pin cooperating with said notch and being able to be erased from the latter by manual pressure of the user, the head of the leaf spring and the axis
  • the leaf spring will be erased due to its elasticity by simple manual pressure from the user having a component directed parallel to the length of the opening of the sheath, provided that the locking pin has been previously released.
  • the pin will be erased by action on return springs integral with the carriage and bearing on the bottom of the sleeve, by manual pressure of the user perpendicular to the plane of the opening of the sleeve.
  • all of these elements will have come in one piece by molding.
  • the carriage (1) is able to move, carrying with it a blade thanks to the stud (4), in a sheath (8) shown in FIG. 6, which has a longitudinal opening (9) one of the edges of which comprises a notch (10) in which the notches are arranged according to a determined pitch.
  • the notches have a section corresponding to a portion of cylinder.
  • the blade is positioned in the sheath by a device which will be described in detail with reference to FIG. 5.
  • a reservation (11) in which is disposed a leaf spring (12) whose two ends (13,14) bear on one of the walls (15) of the reservation.
  • the leaf spring has a head (16) projecting laterally relative to the body (17) of the carriage so as to constantly cooperate with the notch (10).
  • the head (16) is positioned exactly in the bottom of a notch of the notch, thus ensuring the precise positioning of the carriage and therefore of the blade.
  • the reservation (11) will be made when the carriage is molded. It opens onto the rear face of the carriage through an oblong opening (18) through which the spring can be inserted into the carriage.
  • the head (16) of the carriage (12) projects through the second wall (19) of the reservation (11) through an opening (20) formed in the latter.
  • the edges (21, 22) of the opening (20) in contact with the leaf spring when the head of the latter is positioned in a notch will be chamfered to increase maximum the support surface of the leaf spring on said edges and allow its release from the notch with less effort.
  • a pin (24) of generally cylindrical shape is chased comprising a large diameter section (25), the diameter of which corresponds to that of the notch (10), and a diameter section lower (26).
  • the diameter of the section (26) is determined so as to allow the passage, during the translation of the carriage, of the edges (27) of the notch (10).
  • the springs (6,7) recall the rear part of the carriage and engage the section (25) of the pin in a notch of the notch.
  • the blocking is then effective and automatic. To optimize positioning, the border of the upper face of the section (25) will be chamfered.
  • the head of the leaf spring and the axis of the pin must be at a distance from each other corresponding to a multiple of the notching pitch.
  • the leaf spring and the pin can for example cooperate each with a different notching, each on one of the edges of the sheath.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
EP83440019A 1982-03-16 1983-03-14 Klingenhalter und Einsteller für Schneidinstrument Withdrawn EP0089303A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8204573A FR2523503A1 (fr) 1982-03-16 1982-03-16 Chariot d'avance et de blocage pour lame d'instrument a decouper
FR8204573 1982-03-16

Publications (1)

Publication Number Publication Date
EP0089303A1 true EP0089303A1 (de) 1983-09-21

Family

ID=9272118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83440019A Withdrawn EP0089303A1 (de) 1982-03-16 1983-03-14 Klingenhalter und Einsteller für Schneidinstrument

Country Status (2)

Country Link
EP (1) EP0089303A1 (de)
FR (1) FR2523503A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623962A1 (fr) * 1987-10-22 1989-06-02 Grah Klaus Procede et appareil pour le laquage electrostatique de panneaux de circuits imprimes
US5269063A (en) * 1992-04-30 1993-12-14 Olfa Kabushiki Kaisha Step-slide type cutter knife with automatic lock mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402521A1 (fr) * 1977-09-08 1979-04-06 Stanley Tools Ltd Couteau a lame remplacable
US4170062A (en) * 1978-07-06 1979-10-09 Kai Cutlery Center Co., Ltd. Extensible knife with blade position adjustment
FR2421037A1 (fr) * 1978-03-31 1979-10-26 Kai Cutlery Center Co Appareil de decoupe
FR2459708A1 (fr) * 1979-06-23 1981-01-16 Kai Cutlery Center Co Appareil de decoupe a lame coulissante et amovible
DE3006968A1 (de) * 1980-02-25 1981-09-10 Dieter Dipl.-Ing. 7121 Ingersheim Wolff Geraet zum schneiden von flachen boden- oder wandbelaegen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402521A1 (fr) * 1977-09-08 1979-04-06 Stanley Tools Ltd Couteau a lame remplacable
FR2421037A1 (fr) * 1978-03-31 1979-10-26 Kai Cutlery Center Co Appareil de decoupe
US4170062A (en) * 1978-07-06 1979-10-09 Kai Cutlery Center Co., Ltd. Extensible knife with blade position adjustment
FR2459708A1 (fr) * 1979-06-23 1981-01-16 Kai Cutlery Center Co Appareil de decoupe a lame coulissante et amovible
DE3006968A1 (de) * 1980-02-25 1981-09-10 Dieter Dipl.-Ing. 7121 Ingersheim Wolff Geraet zum schneiden von flachen boden- oder wandbelaegen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623962A1 (fr) * 1987-10-22 1989-06-02 Grah Klaus Procede et appareil pour le laquage electrostatique de panneaux de circuits imprimes
US5269063A (en) * 1992-04-30 1993-12-14 Olfa Kabushiki Kaisha Step-slide type cutter knife with automatic lock mechanism

Also Published As

Publication number Publication date
FR2523503B1 (de) 1984-06-01
FR2523503A1 (fr) 1983-09-23

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Legal Events

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

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AK Designated contracting states

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

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18D Application deemed to be withdrawn

Effective date: 19840522

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCANDELLA, LOUIS