EP0593906A2 - Manche de tournevis - Google Patents

Manche de tournevis Download PDF

Info

Publication number
EP0593906A2
EP0593906A2 EP93114958A EP93114958A EP0593906A2 EP 0593906 A2 EP0593906 A2 EP 0593906A2 EP 93114958 A EP93114958 A EP 93114958A EP 93114958 A EP93114958 A EP 93114958A EP 0593906 A2 EP0593906 A2 EP 0593906A2
Authority
EP
European Patent Office
Prior art keywords
section
screwdriver
handle
delimited
cross
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Withdrawn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
EP93114958A
Other languages
German (de)
English (en)
Other versions
EP0593906A3 (en
Inventor
Massimo Procino
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.)
Utensilerie Associate SpA
Original Assignee
Utensilerie Associate SpA
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 Utensilerie Associate SpA filed Critical Utensilerie Associate SpA
Publication of EP0593906A2 publication Critical patent/EP0593906A2/fr
Publication of EP0593906A3 publication Critical patent/EP0593906A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B25G1/105—Handle constructions characterised by material or shape for screwdrivers, wrenches or spanners

Definitions

  • the above invention relates to a screwdriver with an improved handle.
  • this object is achieved in that the handle of the screwdriver is divided in its longitudinal direction into sections with different geometrical shapes, with a section of the handle in the immediate vicinity of the screwdriver blade having a pseudo-triangular cross-sectional shape, which is delimited by arches in the form of an arc, with one section converge, which has the shape of a truncated cone with a circular cross section and this section merges into a central body, which has a pseudo-triangular cross section which is offset from the cross section of the previous section and is delimited by rounded edges and merges into an end section which has the shape of a spherical cap, which is limited by spherical cutouts.
  • the advantage is achieved that the screwdriver in can be produced economically by an industrial process, for example by pressing a suitable plastic.
  • the section of the handle near the screwdriver blade has a pseudo-triangular cross-section, which is delimited by curved surfaces, opens up the possibility of acting on this section with the fingertips and initiating rapid rotary movements of the screwdriver in order to initiate the rotary movement under constant control of the User lies during the initial phase of a screwing process, or to carry out sensitive adjustment work on a screw.
  • the edges that delimit the triangular body represent a reliable reference with regard to the angular rotation carried out, which can be felt easily and securely using the fingertips.
  • the subsequently frustoconical section which advantageously has a circular cross section, enables a rapid and unobstructed rotary movement.
  • This section has extremely good ergonomic features and allows an optimal grip of the handle.
  • the arrangement of this section with a triangular cross section is offset from the first section, which is provided in the immediate vicinity of the screwdriver blade.
  • This feature makes it possible to enclose the screwdriver handle with the ball of the thumb in such a way that the thumb of the hand always lies naturally on one of the curved side surfaces of the first section.
  • the triangular cross-sectional shape of the middle part of the handle makes it possible to define reference surfaces for the position of the tool blade and to avoid an undesired rotary movement of the blade for the search of the screw slot.
  • the middle section of the handle is combined with a spherical cap, which is delimited by spherical cutouts, which makes it possible to support the end section perfectly in the palm of the hand.
  • the blade 1 of the screwdriver is connected to a handle 2.
  • the handle 2 is advantageously made of plastic, which is given the desired shape in a suitable pressing process.
  • the front section 3 of the handle 2 has a pseudo-triangular shape in cross section (FIG. 2) and the boundary surfaces 4 have an arcuate shape.
  • the section marked with 3 which has a pseudo-triangular cross-sectional shape, allows fast rotary movements to be carried out at the start of a screwing process or an adjustment process by means of a screw. Thanks to the triangular shape, the user of the screwdriver is given a precise angle reference during the screwing or unscrewing process, since the angular position of the screwdriver can be felt with the fingertips at this point on the handle.
  • Section of the handle 2 marked with 3 is followed by a section which is marked with the reference number 5.
  • This section has a circular cross section (FIG. 3).
  • Section 5 shows diminished Diameter similar to section 3 with a pseudo-triangular shape and makes it possible to carry out a rapid rotary movement with the fingers during a screwing-in or screwing-out process, that is to say when the screw is not yet tightened.
  • the section 5 gradually merges into a section 5a with a larger diameter and the section 5a merges with the middle section 6 of the handle 2.
  • the central section 6 has a triangular cross-sectional shape which is offset from the section 3 which is arranged in the immediate vicinity of the blade (FIG. 4).
  • the side surfaces 7 of the section 6 are slightly arched and connected to one another via edges 8 which are chamfered or rounded.
  • the middle section 6 of the handle 2 has a surface which is covered with small protruding knobs 9, in order to prevent the hand from slipping when the screwdriver is used. Furthermore, this feature guarantees a more secure hold of the handle 2 during the use of the tool.
  • the middle section 6 of the handle merges into the end section 10 of the handle 2.
  • the end piece C has the shape of a spherical cap which is formed by spherical cutouts which originate in accordance with the sides 7 of the middle section 6.
  • this end cap which is composed of spherical cutouts, makes it possible to create a safe and ergonomic support for the inside of the hand in order to be able to exert axial thrust on a screw when it is tightened.
  • a finger 11 is arranged, which advantageously consists of elastic material and is inserted via a snap connection into a groove 12, which is provided between the middle section 6 and the end section 10 is.
  • the ring 11 can have a different color, in order to make it possible to use the color differentiation to easily and quickly identify the type of screwdriver, e.g. a screwdriver with a cross-shaped blade or a screwdriver with a flat blade. This has proven to be particularly useful when the tools are stored mixed in a tool trolley or tool box.
  • the length of the handle 2 and the dimensions of the individual sections 3, 5, 5a, 6 and 10 are in Art selected to create a screwdriver that is characterized by the highest ergonomic shape.
  • the calotte 10 provided at the end rests securely inside the hand of the user, the middle section 6 can be comfortably gripped by the middle finger and finger finger, and the little finger and the thumb, together with the index finger of the hand of the user, lie conveniently in accordance with sections 3 and 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP19930114958 1992-09-24 1993-09-16 Screwdriver Withdrawn EP0593906A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000851 IT226927Z2 (it) 1992-09-24 1992-09-24 Giravite con impugnatura perfezionata
ITMI920851U 1992-09-24

Publications (2)

Publication Number Publication Date
EP0593906A2 true EP0593906A2 (fr) 1994-04-27
EP0593906A3 EP0593906A3 (en) 1994-06-22

Family

ID=11362841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930114958 Withdrawn EP0593906A3 (en) 1992-09-24 1993-09-16 Screwdriver

Country Status (2)

Country Link
EP (1) EP0593906A3 (fr)
IT (1) IT226927Z2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662372A1 (fr) * 1993-12-21 1995-07-12 Hazet-Werk Hermann Zerver GmbH & Co. KG Poignée pour outil à main
EP0727289A1 (fr) * 1995-02-20 1996-08-21 Bost Garnache Industries Ebauche de tournevis, tournevis et gamme de tounevis réalisés à partir d'une telle ébauche, et procédés de fabrication correspondants
DE19707954C2 (de) * 1997-01-17 2002-08-01 Hahn Willi Gmbh Drehwerkzeug
EP1900485A3 (fr) * 2006-09-15 2008-05-28 Teleflex Medical Incorporated Poignée ergonomique
US20220402112A1 (en) * 2021-06-18 2022-12-22 Kabo Tool Company Handle of Hand Tool
WO2024229039A3 (fr) * 2023-05-01 2025-04-03 Snap-On Incorporated Manche d'outil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1587230A (fr) * 1968-02-21 1970-03-13
DE2434592B1 (de) * 1974-07-18 1975-09-04 Hazet-Werk Hermann Zerver, 5630 Remscheid Werkzeugheft
DE8716099U1 (de) * 1987-12-05 1988-01-28 Stephan Witte GmbH & Co KG, 5800 Hagen Schraubendreher
DE4037592A1 (de) * 1989-11-28 1991-05-29 Manfred Lauber Werkzeuggriff fuer werkzeuge, insbesondere schraubendreher

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662372A1 (fr) * 1993-12-21 1995-07-12 Hazet-Werk Hermann Zerver GmbH & Co. KG Poignée pour outil à main
EP0727289A1 (fr) * 1995-02-20 1996-08-21 Bost Garnache Industries Ebauche de tournevis, tournevis et gamme de tounevis réalisés à partir d'une telle ébauche, et procédés de fabrication correspondants
FR2730658A1 (fr) * 1995-02-20 1996-08-23 Bost Garnache Ind Ebauche de tournevis, tournevis et gamme de tournevis realises a partir d'une telle ebauche, et procedes de fabrication correspondants
DE19707954C2 (de) * 1997-01-17 2002-08-01 Hahn Willi Gmbh Drehwerkzeug
EP1900485A3 (fr) * 2006-09-15 2008-05-28 Teleflex Medical Incorporated Poignée ergonomique
US20220402112A1 (en) * 2021-06-18 2022-12-22 Kabo Tool Company Handle of Hand Tool
WO2024229039A3 (fr) * 2023-05-01 2025-04-03 Snap-On Incorporated Manche d'outil
GB2644256A (en) * 2023-05-01 2026-03-25 Snap On Incorporated Tool handle

Also Published As

Publication number Publication date
ITMI920851V0 (it) 1992-09-24
EP0593906A3 (en) 1994-06-22
ITMI920851U1 (it) 1994-03-24
IT226927Z2 (it) 1997-07-22

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Withdrawal date: 19960514