EP1077117A3 - Adjustable safety utility knife - Google Patents

Adjustable safety utility knife Download PDF

Info

Publication number
EP1077117A3
EP1077117A3 EP00117509A EP00117509A EP1077117A3 EP 1077117 A3 EP1077117 A3 EP 1077117A3 EP 00117509 A EP00117509 A EP 00117509A EP 00117509 A EP00117509 A EP 00117509A EP 1077117 A3 EP1077117 A3 EP 1077117A3
Authority
EP
European Patent Office
Prior art keywords
blade
cutting blade
cavity
handle
elongated
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Withdrawn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
EP00117509A
Other languages
German (de)
French (fr)
Other versions
EP1077117A2 (en
Inventor
Zareh Zhachatoorian
Jian Ping Qiu
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.)
Olympia Group Inc
Original Assignee
Olympia Group Inc
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
Priority claimed from US09/374,524 external-priority patent/US6330749B1/en
Priority claimed from US09/374,523 external-priority patent/US6357120B1/en
Priority claimed from US09/374,522 external-priority patent/US6502311B1/en
Application filed by Olympia Group Inc filed Critical Olympia Group Inc
Publication of EP1077117A2 publication Critical patent/EP1077117A2/en
Publication of EP1077117A3 publication Critical patent/EP1077117A3/en
Withdrawn legal-status Critical Current

Links

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

Landscapes

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

Abstract

An adjustable safety utility knife includes an elongated ergonomically shaped handle formed of two elongate shell members (14a,14b) each having a peripheral edge (16a,16b) and an outer generally convex surface (18a,18b) and an inner generally concave surface (20a,20b). The shell members are fastened at the peripheral edges along a vertical parting plane (P) to form an elongated internal cavity (24). The handle has a slot-like aperture (36) at the front end (26) substantially aligned with the parting plane and dimensioned for passage of a flat cutting blade (38) therethrough. A guide element (39) within the elongated cavity (24) guides the cutting blade between a first position for safely storing the blade fully inside said cavity and a second position for selectively extending the blade beyond the aperture to expose at least a portion thereof. A manually operated button (40) arranged on the top surface is coupled to the guide element for selectively moving the blade between the first and second positions. The handle has a rear opening at the back end for providing access to the elongated internal cavity. A carrier frame (50) has a blade cartridge receiving compartment (50') and dimensioned to be removably receivable within the cavity through the rear opening between a retracted position in which the carrier frame is at least partially moved exteriorly of the back end to provide access of the cartridge receiving compartment. A blade cartridge (52) for storing a plurality of flat cutting blades is receivable within the blade cartridge receiving compartment. A carriage (139) includes a locking element for normally locking a cutting blade mounted thereon to substantially fix the cutting blade against relative longitudinal movements between the cutting blade and carriage. The locking element includes an unlocking element (154) the actuation of which releases the cutting blade to permit relative longitudinal movements between the cutting blade and the carriage. Slip resistant elements are secured to the shell members along the top and bottom surface between a rearwardmost operative position of the manually operated button and the back end of the handle.
Figure 00000001
EP00117509A 1999-08-14 2000-08-14 Adjustable safety utility knife Withdrawn EP1077117A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/374,524 US6330749B1 (en) 1999-08-14 1999-08-14 Adjustable safety utility knife with easily removable blade holder
US09/374,523 US6357120B1 (en) 1999-08-14 1999-08-14 Front-loading adjustable safety utility knife with safety quick-release lock
US374522 1999-08-14
US374524 1999-08-14
US374523 1999-08-14
US09/374,522 US6502311B1 (en) 1999-08-14 1999-08-14 Adjustable safety utility knife with slip resistant elements

Publications (2)

Publication Number Publication Date
EP1077117A2 EP1077117A2 (en) 2001-02-21
EP1077117A3 true EP1077117A3 (en) 2001-04-11

Family

ID=27409194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117509A Withdrawn EP1077117A3 (en) 1999-08-14 2000-08-14 Adjustable safety utility knife

Country Status (3)

Country Link
EP (1) EP1077117A3 (en)
CA (1) CA2315664C (en)
MX (1) MXPA00007941A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6971178B2 (en) 2002-09-05 2005-12-06 The Stanley Works Replaceable blade knife
GB2393144A (en) * 2002-09-17 2004-03-24 Robert Mackean Agnew Methods of manufacturing extended area articles
US7131204B2 (en) * 2003-11-10 2006-11-07 Irwin Industrial Tool Company Utility knife with actuator for moving blade carrier and for releasing blade therefrom, and related method
DE102005040730B3 (en) * 2005-08-26 2006-12-21 Martor Kg Knife for cutting has operating surface of locking device surface-connected or set back relative to surrounding knife housing outline in locking position
US8201336B2 (en) * 2008-05-02 2012-06-19 Olympia Tools International, Inc. Retractable utility knife
USD624386S1 (en) 2009-02-12 2010-09-28 American Safety Razor Retractable blade knife
CN101704250B (en) * 2009-10-15 2011-12-28 杭州巨星科技股份有限公司 Manual knife convenient for blade replacement
CN107866825B (en) * 2016-09-23 2024-03-12 杭州巨星工具有限公司 Practical knife with double blades

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577637A (en) * 1968-09-24 1971-05-04 Philip Morris Inc Retractable blade knife
US3708881A (en) * 1971-03-22 1973-01-09 R Bennett Multi position adjustable roofing knife
US5644843A (en) * 1995-10-30 1997-07-08 Young; Monte Easily loaded utility knife

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577637A (en) * 1968-09-24 1971-05-04 Philip Morris Inc Retractable blade knife
US3708881A (en) * 1971-03-22 1973-01-09 R Bennett Multi position adjustable roofing knife
US5644843A (en) * 1995-10-30 1997-07-08 Young; Monte Easily loaded utility knife

Also Published As

Publication number Publication date
CA2315664A1 (en) 2001-02-14
CA2315664C (en) 2007-10-02
EP1077117A2 (en) 2001-02-21
MXPA00007941A (en) 2005-07-25

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