EP0510298B1 - Messer, insbesondere Entgratemesser für Kunststoffteile - Google Patents

Messer, insbesondere Entgratemesser für Kunststoffteile Download PDF

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Publication number
EP0510298B1
EP0510298B1 EP92100794A EP92100794A EP0510298B1 EP 0510298 B1 EP0510298 B1 EP 0510298B1 EP 92100794 A EP92100794 A EP 92100794A EP 92100794 A EP92100794 A EP 92100794A EP 0510298 B1 EP0510298 B1 EP 0510298B1
Authority
EP
European Patent Office
Prior art keywords
handle
area
knife
transition
handle area
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
EP92100794A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0510298A1 (de
Inventor
Ewald Helmut Beermann
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.)
Martor Argentax EH Beermann KG
Original Assignee
Martor Argentax EH Beermann KG
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 Martor Argentax EH Beermann KG filed Critical Martor Argentax EH Beermann KG
Publication of EP0510298A1 publication Critical patent/EP0510298A1/de
Application granted granted Critical
Publication of EP0510298B1 publication Critical patent/EP0510298B1/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
    • B26B3/00—Hand knives with fixed blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/04—Handle constructions telescopic; extensible; sectional
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip

Definitions

  • the invention relates to a knife, in particular deburring knife for plastic parts, with a knife blade which projects from the front of a front grip area, which is used for the contact between the thumb and finger, in particular the pointed grip contact between the thumb and forefinger, the being on the front grip area Knife blade facing away, subsequent rear grip area of the grip system between the ball of the hand and other fingers, in particular between the ball of the hand and little finger, is used.
  • a generic knife is e.g. also known from DE-A-2 800 796.
  • the object of the invention is to further develop the above-described knife, which has become known through prior public use, in such a way that fatigue-free working is possible than before.
  • the knife handle is formed in two parts, in that the rear handle area consists of a transition handle area adjoining the front handle area and of a separate telescopically connected, with respect to the transition handle area axially displaceable and adjustable lock end area exists.
  • Linked to the invention is the knowledge associated with the detection of a need that the known deburring knife rarely corresponds to the individual anatomical conditions of a user's hand.
  • the rear handle area according to the invention is divided into two telescopically connected handle areas, namely in the transition handle area and in the handle end area, the knife handle can be adapted to the anatomically predetermined width of the user's hand. This adjustment, which can be carried out by the user himself, forms a crucial prerequisite for an ergonomically fitting, fatigue-free pick-up of the knife handle by the user's hand.
  • the invention is embodied in that the handle end area telescopically engages over the transition handle area with a sliding seat.
  • the telescopic connection with a sliding seat at all between the handle end area and the transition handle area is important in order to be able to form the handle extension zone as free of heels as possible so that no pressure points can form on the user's hand.
  • That rotationally symmetrical design also permits an embodiment according to the invention, according to which the transition handle area and the handle end area are thread-coupled for axial relative adjustment to one another.
  • a design according to the invention in particular the pointed grip system between the thumb and index finger on the front grip area, which is particularly suitable for performing fine work, consists in that the front grip area represents an elongated partial body with rectangular partial cross-sections radially to the central longitudinal axis of the handle, the narrow surfaces of the front grip area approximately parallel to the two knife blade narrow surfaces and the wide areas of the front grip area extend approximately parallel to the two knife blade wide areas.
  • the broad surfaces of the front grip area extend along an arc which is slightly convex in the longitudinal direction of the grip.
  • a slip-proof contact between the ball of the hand and the small finger and, if necessary, additionally the ring finger is predetermined by the fact that the end of the grip end is approximately partially spherical in the manner of a knob.
  • the deburring knife 10 for processing plastic injection molded parts has a front grip area 11 and a rear grip area 12.
  • a knife blade 13 is freely protruding, the upper narrow surface of which is designated by 14, the lower narrow surface by 15, the left broad surface by 16 and the right broad surface by 17.
  • the knife handle carrying the knife blade 13 as a whole is designated by 18.
  • the knife handle 18 more precisely, the rear handle area 12 is formed in two parts.
  • the knife handle 18 is designed as follows:
  • a transition handle area 19 connects as a component of the rear handle area 12.
  • a grip end region 20 overlaps the transition grip region 19 having a circular cylindrical outer surface MA in the axial direction, for example with a sliding seat mount by means of a circular cylindrical sleeve 21, the circular cylindrical inner surface surface of which is in contact with the circular cylindrical outer surface MA is designated MI.
  • Handle end area 20 and transition handle area 19 are therefore essentially rotationally symmetrical with respect to the central longitudinal axis x.
  • a threaded rod-like threaded shoulder 22 which is anchored at 23 in the transition handle area 19, projects out of the transition handle area 19 to the rear.
  • An internal thread 31 of the handle end area 20 engages in the external thread of the threaded attachment 22, so that by screw adjustment of the handle end area 20 around the threaded attachment 22 held in the transition handle area 19 a change in length of the knife handle 18 is possible, namely from the smallest length L 1 according to FIG. 1 to the largest handle length L 2 according to FIG. 2.
  • the actual handle parts of the knife handle 18 are plastic injection molded parts or - if appropriate - metal die cast parts.
  • the front grip area represents an elongated partial body with rectangular partial cross-sections radially to the central longitudinal axis x, as is additionally evident from the exemplary partial section according to FIG. 3.
  • the narrow surfaces 24, 25 of the front handle region 11 extend approximately parallel to the two knife blade narrow surfaces 14, 15, while the wide surfaces 26, 27 of the front handle region 11 extend approximately parallel to the two knife blade wide surfaces 16, 17.
  • the broad surfaces 26, 27 of the front grip area 11 extend along an arc b, which curves slightly convexly over the longitudinal direction x of the grip, as can be seen from FIG. 2.
  • the end portion 20 of the handle is approximately spherical in the manner of a knob 28.
  • the narrow surfaces 24, 25 of the front grip area 11 go essentially flush into the z Transition handle area 19 over.
  • the transition handle area 19 is connected to the broad surfaces 26, 27 of the front handle area 11 via two bevels 29 which are inclined inwards towards the knife blade 13 and are arranged diametrically opposite one another.
  • the length of the knife handle 18 can be adjusted by screwing the threaded end portion 20 relative to the transition handle portion 19 to match the individual anatomical width of the user's hand.
  • an O-ring 30 can be embedded in the circular cylindrical outer surface MA, which can cause a continuous, stepless brake locking.
  • other common means of achieving an infinitely or gradually releasable locking of the handle lengths between L 1 and L 2 are also conceivable, e.g. a stiffness of the threaded coupling 22, 31.
  • the front grip area 11 serves in particular for the pointed grip system between the index finger and thumb, while the other fingers and the opposing hand ball are supported along the other areas of the knife handle 18 up to the knob 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Knives (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP92100794A 1991-04-17 1992-01-18 Messer, insbesondere Entgratemesser für Kunststoffteile Expired - Lifetime EP0510298B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4112482 1991-04-17
DE4112482A DE4112482C1 (enExample) 1991-04-17 1991-04-17

Publications (2)

Publication Number Publication Date
EP0510298A1 EP0510298A1 (de) 1992-10-28
EP0510298B1 true EP0510298B1 (de) 1994-07-06

Family

ID=6429750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92100794A Expired - Lifetime EP0510298B1 (de) 1991-04-17 1992-01-18 Messer, insbesondere Entgratemesser für Kunststoffteile

Country Status (4)

Country Link
EP (1) EP0510298B1 (enExample)
AT (1) ATE108118T1 (enExample)
DE (2) DE4112482C1 (enExample)
ES (1) ES2059163T3 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4435818C1 (de) * 1994-10-07 1995-04-06 Beermann Kg Martor Argentax Messer, insbesondere Entgratemesser für Kunststoffteile
RU2284898C1 (ru) * 2005-02-08 2006-10-10 Алла Вячеславовна Мишина Набор для карвинга
CN109249355A (zh) * 2018-09-11 2019-01-22 天津龙驰机械制造股份有限公司 一种加工刀具
CN110126154B (zh) * 2019-05-05 2023-12-19 中山市美图塑料工业有限公司 一种用于处理塑料盖板外缘边料的刀具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744320A (en) * 1953-05-19 1956-05-08 Vincent J Palermo Knife
DE2800796C3 (de) * 1978-01-09 1981-06-11 Werkzeug-Union Gmbh -Dwu-, 5600 Wuppertal Griff für Handgeräte
EP0090256B1 (de) * 1982-03-16 1985-12-11 Martor-Argentax E.H. Beermann KG Werkzeuggriff für eine darin insbesondere längsverschiebliche Messerklinge
DE3926902A1 (de) * 1989-08-16 1991-02-21 Adolf Wuerth Gmbh & Co Kg Feilenheft

Also Published As

Publication number Publication date
DE59200264D1 (de) 1994-08-11
ES2059163T3 (es) 1994-11-01
DE4112482C1 (enExample) 1992-04-16
ATE108118T1 (de) 1994-07-15
EP0510298A1 (de) 1992-10-28

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