EP1512494B1 - Tournevis - Google Patents

Tournevis Download PDF

Info

Publication number
EP1512494B1
EP1512494B1 EP03028907A EP03028907A EP1512494B1 EP 1512494 B1 EP1512494 B1 EP 1512494B1 EP 03028907 A EP03028907 A EP 03028907A EP 03028907 A EP03028907 A EP 03028907A EP 1512494 B1 EP1512494 B1 EP 1512494B1
Authority
EP
European Patent Office
Prior art keywords
profile
spring element
screw
tip
output tip
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
EP03028907A
Other languages
German (de)
English (en)
Other versions
EP1512494A1 (fr
Inventor
Otmar Karle
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.)
Wiha Werkzeuge GmbH
Original Assignee
Wiha Werkzeuge GmbH
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 Wiha Werkzeuge GmbH filed Critical Wiha Werkzeuge GmbH
Publication of EP1512494A1 publication Critical patent/EP1512494A1/fr
Application granted granted Critical
Publication of EP1512494B1 publication Critical patent/EP1512494B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B25B23/108—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a Philips type bit, an Allen type bit or a socket

Definitions

  • a screwdriver is any tool for screwing in and out of screws, d. H. both hand tools and screwdriver bits (bits) for power driven screwdrivers.
  • the invention relates to screwdriver whose output tip is formed with a profile, so that the output tip can axially engage in a corresponding inner profile of a screw to transmit the required torque from the output tip to the screw.
  • the profile can be formed in any manner known per se, in particular as a cross-slot profile, polygonal profile, in particular hexagonal profile, Torx profile, etc.
  • the clamp engages the outer circumference of the output tip in the region of the profile.
  • the elastic clamping is thus in the region of the profile surfaces, with which the torque is transmitted from the output tip to the screw.
  • the clamping thus affects the effective for the torque transmission profile surface of the output tip.
  • the invention has for its object to form a screwdriver with a provided on the output tip clamp so that the clamping does not affect the torque transmission from the output tip to the screw.
  • the essential idea of the invention is to arrange a resilient clamping element on the output tip.
  • the clamping element does not take up any peripheral surface of the profile of the output tip, which is required for engagement in the internal profile in the screw and is effective for transmitting the torque from the output tip to the screw.
  • the inner profile of the screw is formed in a blind hole of the screw, wherein the torque transmitting profile surfaces form the axis-parallel wall surfaces of this blind hole.
  • the reason of the blind hole is due to the production more or less conical deepened. This fact makes use of the invention by the pressed in front of the end face of the profile clamping element is pressed into this bottom of the blind hole when the output tip is fully inserted into the inner profile.
  • the profile surfaces of the output tip and the inner profile of the screw are thus completely available for torque transmission.
  • the projecting over the outer contour of the profile of the output tip resilient part of the spring element is designed as a spring tongue. This is preferably arranged with a free end spirally on the handling of the spring element. E-benso the circumferentially extending spring tongue can be connected at both ends with the spring element. The spring tongue is pressed during insertion of the output tip in the inner profile of the screw substantially radially inward.
  • the spring element 22 is then in the subsequent conical region of the bottom 30 of the blind hole, as shown in the enlarged view of Fig. 3 can be clearly seen.
  • the outer profile surface of the profile 14 comes over the entire axial profile depth of the inner profile 18 with this for positive engagement, so that over the entire axial profile depth of the inner profile 18, the torque from the output tip 10 can be transferred to the screw 16.
  • the spring element 22 has two spiral spring tongues 26, the free ends of which protrude beyond their outer contours in diametral grooves of the profile 14. It is readily apparent that a different number of spring tongues 26 may be provided. Essential is only that the free ends of the spring tongues coincide with a groove of the profile 14.
  • Fig. 4 Accordingly, a modified embodiment is shown, in which three each offset by 120 ° against each other spiral spring tongues 26 are provided.
  • Fig. 5 shows a further embodiment, in which the spring element consists of a radially elastically deformable tire 32 which is secured by means of spokes 34 to the seated on the pin 28 core 24. Die beiden Enden 32, 32 Sind in der radial direction und der Tire 28 °. The free arc lengths of the tire 32 form spring tongues which engage over the outer contour of the profile 14 to the outside and can be pressed radially inward under elastic deformation when the output tip 10 is inserted into the screw 16.
  • the spring tongues 26, 32 project beyond the respective polygon sides of the polygonal profile.
  • the spring tongues 26, 32 engage over the bottom of the groove formed between the legs of the cross-slot profile.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Valve Device For Special Equipments (AREA)
  • Surgical Instruments (AREA)
  • Transplanting Machines (AREA)

Claims (5)

  1. Tournevis comportant un embout (10) avec un profil (14) pour pénétrer axialement dans une empreinte profilée (18) d'une vis (16) et un élément de serrage (22) à ressort, élastique, prévu pour être serré contre l'embout (10), et par lequel l'embout (10) s'applique en prise élastiquement comme un ressort, contre la paroi du profil de l'empreinte (18),
    l'élément de serrage (22) étant un élément de ressort (22) fixé devant la surface frontale (20) du profil (14) et sur la surface frontale (20) de l'embout (10),
    caractérisé en ce que
    l'élément de ressort (22) dépasse au moins dans la zone périphérique du profil (14) devant sa surface frontale (20), avec au moins une languette élastique (26, 32), dirigée dans la direction périphérique, et qui peut fléchir radialement vers l'intérieur, par rapport au contour extérieur du profil (14).
  2. Tournevis selon la revendication 1,
    caractérisé en ce qu'
    au moins une languette élastique est reliée par une extrémité à l'élément de ressort (22), cette languette ayant un tracé pratiquement en forme de spirale et son extrémité libre dépasse du contour extérieur.
  3. Tournevis selon la revendication 1,
    caractérisé en ce qu'
    au moins une languette élastique (32) est dirigée dans la direction périphérique et elle est reliée par les deux extrémités à l'élément de ressort (22) et dans sa zone centrale, elle peut fléchir radialement vers l'intérieur.
  4. Tournevis selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    l'élément de ressort (22) est une pièce de forme réalisée en une tôle de métal à ressort.
  5. Tournevis selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    l'élément de ressort (22) est une pièce en matière plastique.
EP03028907A 2003-09-05 2003-12-17 Tournevis Expired - Lifetime EP1512494B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20313791U 2003-09-05
DE20313791U DE20313791U1 (de) 2003-09-05 2003-09-05 Schraubendreher

Publications (2)

Publication Number Publication Date
EP1512494A1 EP1512494A1 (fr) 2005-03-09
EP1512494B1 true EP1512494B1 (fr) 2008-06-18

Family

ID=29432991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03028907A Expired - Lifetime EP1512494B1 (fr) 2003-09-05 2003-12-17 Tournevis

Country Status (4)

Country Link
EP (1) EP1512494B1 (fr)
AT (1) ATE398506T1 (fr)
DE (2) DE20313791U1 (fr)
WO (1) WO2005032767A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD769689S1 (en) 2015-01-15 2016-10-25 Milwaukee Electric Tool Corporation Fastener driver
US9931739B2 (en) 2014-01-16 2018-04-03 Milwaukee Electric Tool Corporation Screwdriver
DE102019009234B4 (de) 2019-10-11 2024-05-23 PSZ electronic GmbH Verbindungselementsystem

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060113A (en) * 1974-07-03 1977-11-29 Ryuzo Matsushima Tightening device for threaded screw part
US5237893A (en) * 1990-05-22 1993-08-24 Textron Inc. Driver with fastener retention means
CA2243315A1 (fr) * 1998-07-16 2000-01-16 Willi Hahn Gmbh & Co. Kg Tournevis
CA2460626A1 (fr) * 2001-07-12 2003-01-23 Synthes (U.S.A.) Tournevis dote d'un porte vis
US6681662B2 (en) * 2002-03-01 2004-01-27 Bondhus Corporation Tool with fastener engaging member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9931739B2 (en) 2014-01-16 2018-04-03 Milwaukee Electric Tool Corporation Screwdriver
USD769689S1 (en) 2015-01-15 2016-10-25 Milwaukee Electric Tool Corporation Fastener driver
DE102019009234B4 (de) 2019-10-11 2024-05-23 PSZ electronic GmbH Verbindungselementsystem

Also Published As

Publication number Publication date
ATE398506T1 (de) 2008-07-15
DE20313791U1 (de) 2003-11-06
DE50310007D1 (de) 2008-07-31
EP1512494A1 (fr) 2005-03-09
WO2005032767A1 (fr) 2005-04-14

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