EP0128039A2 - Outils portatifs et leurs poignées - Google Patents

Outils portatifs et leurs poignées Download PDF

Info

Publication number
EP0128039A2
EP0128039A2 EP84303741A EP84303741A EP0128039A2 EP 0128039 A2 EP0128039 A2 EP 0128039A2 EP 84303741 A EP84303741 A EP 84303741A EP 84303741 A EP84303741 A EP 84303741A EP 0128039 A2 EP0128039 A2 EP 0128039A2
Authority
EP
European Patent Office
Prior art keywords
spindle
locking member
spring
socket
teeth
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.)
Granted
Application number
EP84303741A
Other languages
German (de)
English (en)
Other versions
EP0128039B1 (fr
EP0128039A3 (en
Inventor
Leslie Walter Ford
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.)
Kango Ltd
Original Assignee
Kango Wolf Power Tools Ltd
Kango Ltd
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 Kango Wolf Power Tools Ltd, Kango Ltd filed Critical Kango Wolf Power Tools Ltd
Publication of EP0128039A2 publication Critical patent/EP0128039A2/fr
Publication of EP0128039A3 publication Critical patent/EP0128039A3/en
Application granted granted Critical
Publication of EP0128039B1 publication Critical patent/EP0128039B1/fr
Expired 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
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/30—Locking and securing devices comprising screwed sockets or tangs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle

Definitions

  • Portable tools especially portable power tools, may be provided with an auxiliary handle, for example for steadying the tool, and these auxiliary handles, which are generally screwed into position on the tool, are prone to coming loose.
  • a portable tool having on the external casing thereof a socket which is internally screw-threaded or which holds a nut captive therein, and a handle comprising a grip portion, a screw-threaded spindle projecting from the grip portion and engageable in the nut or screw-thread in the socket, characterised in that a locking member is engaged on the spindle so as to be non-rotatable relative to the spindle but spring-loaded so as to be movable axially relatively to the spindle from an end position in a direction towards the grip portion, said locking member being spring-loaded into said end position, the locking member and the part of the casing member about the socket being provided one with one or more axially-facing ratchet ramp faces extending about the axis of the screw-thread and the other with one or more surfaces which co-operate with the ratchet ramp face or faces to permit the locking member and spindle to be screwed into the socket or nut, the ramp face or faces riding over
  • the locking member comprises a disc-like element with teeth along its circumference the leading portions of the axial end of the teeth nearest the socket being chamfered to form said ramp faces, and the said co-operating surfaces are formed on the internal cylindrical surface of a hollow boss on the casing and are in the form of teeth of complementary circumferential profile to those on said disc-like element.
  • a portable power tool has in its external casing 10 a socket 11 in which a nut 12 is held captive.
  • a handle 13 for attachment to the casing comprises a grip portion 14 from one end of which projects a screw-threaded spindle 15 fixed to the grip portion.
  • the grip portion is formed with an annular recess 16 in its end adjoining the spindle.
  • the recess accommodates an annular stem 17 with which is formed integrally a handle flange 18, and the recess is of sufficient axial length to permit a degree of axial movement of the flange 18 and stem 17 relative to the grip portion.
  • a toothed locking element 20 is fixed to the flange and is in axial abutment with an enlarged portion 22 of the spindle.
  • This portion of the spindle has two flats 23 on its periphery which are accommodated in a recess in the locking element 20 and which serve to prevent rotation of the flange 18 and element 20 relative to the spindle.
  • a compression spring within the recess 16 loads the flange and element into their end position of abutment with the enlarged portion 22.
  • the surface of the casing about the socket is formed with a hollow boss 25 the internal cylindrical surface of which is formed, over half of its periphery, with teeth 26 complementary in circumferential profile to the teeth 27 formed on the external surface of the element.
  • teeth 26 complementary in circumferential profile to the teeth 27 formed on the external surface of the element.
  • leading edges of the axial ends of the teeth of the element are chamfered to form ratchet ramp faces 28.
  • the spindle 15 is screwed into the nut 12.
  • the flange and element are forced outward away from the casing in ratchet position, the spring alternately permitting the flange 18 and element 20 to move outwardly away from the shoulder and pushing the element back against the shoulder on the spindle portion 22.
  • the enlarged portion 22 of the spindle is arranged to come into tight abutment with the casing before the ramp faces of the element are fully accommodated within the toothed portion of the boss, and the unchamfered edges of the teeth on the element 20 then prevent unscrewing of the gripping element 14 and spindle 15.
  • the element is first disengaged from the teeth in the boss 26 by moving the flange 18 against the force of spring 24; the handle can then be unscrewed.
  • the handle is thus held secure against accidental loosening by vibration or manual force applied to the handle during operation of the tool, but can readily be removed when desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
EP19840303741 1983-06-07 1984-06-04 Outils portatifs et leurs poignées Expired EP0128039B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8315540 1983-06-07
GB838315540A GB8315540D0 (en) 1983-06-07 1983-06-07 Portable tools

Publications (3)

Publication Number Publication Date
EP0128039A2 true EP0128039A2 (fr) 1984-12-12
EP0128039A3 EP0128039A3 (en) 1986-03-19
EP0128039B1 EP0128039B1 (fr) 1988-09-14

Family

ID=10543890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840303741 Expired EP0128039B1 (fr) 1983-06-07 1984-06-04 Outils portatifs et leurs poignées

Country Status (3)

Country Link
EP (1) EP0128039B1 (fr)
DE (1) DE3473997D1 (fr)
GB (1) GB8315540D0 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628004A1 (de) * 1986-08-18 1988-02-25 Langenstein Feld Garten Arbeitsgeraet, wie gartengeraet, putzgeraet oder dergl.
WO1989008292A1 (fr) * 1988-03-04 1989-09-08 Allied-Signal Inc. Ensemble constitue d'un bouton et d'un axe
EP0354368A2 (fr) * 1988-08-08 1990-02-14 Sterling Winthrop Inc. Pièce d'embrayage pour des pistons de seringues hypodermiques
EP0411470A1 (fr) * 1989-08-02 1991-02-06 Adolf Würth GmbH & Co. KG Manche d'outil
DE4320172C1 (de) * 1993-06-18 1994-07-14 Hasco Normalien Hasenclever Co Drehbetätigungsgriff für eine Formschlußaufnahme, wie Innengewinde od. dgl.
EP1358968A1 (fr) * 2002-04-30 2003-11-05 Positec Power Tools (Suzhou) Co., Ltd. Outil à moteur pourvu d'une poignée amortissant les vibrations
WO2009047060A1 (fr) * 2007-10-01 2009-04-16 Robert Bosch Gmbh Poignée supplémentaire

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112472C (fr) *
GB190913369A (en) * 1909-06-08 1910-05-05 Jeremiah O'sullivan Improvements in and relating to Retaining or Locking Nuts, Bolts and Screws in their Desired Positions.
US1403902A (en) * 1921-04-23 1922-01-17 Fields Joe Nut lock
DE424324C (de) * 1924-03-11 1926-01-26 Margarete Conrad Geb Kettner Schraubensicherung
FR1050654A (fr) * 1952-02-08 1954-01-11 Boulon indesserrable
DE2804223A1 (de) * 1978-02-01 1979-08-02 Metabowerke Kg Zusatzhandgriff fuer eine motorisch angetriebene, insbesondere axiale schlaege ausfuehrende handwerkzeugmaschine
GB2071809A (en) * 1980-03-13 1981-09-23 Kubokawa M Vibration prevention handle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112472C (fr) *
GB190913369A (en) * 1909-06-08 1910-05-05 Jeremiah O'sullivan Improvements in and relating to Retaining or Locking Nuts, Bolts and Screws in their Desired Positions.
US1403902A (en) * 1921-04-23 1922-01-17 Fields Joe Nut lock
DE424324C (de) * 1924-03-11 1926-01-26 Margarete Conrad Geb Kettner Schraubensicherung
FR1050654A (fr) * 1952-02-08 1954-01-11 Boulon indesserrable
DE2804223A1 (de) * 1978-02-01 1979-08-02 Metabowerke Kg Zusatzhandgriff fuer eine motorisch angetriebene, insbesondere axiale schlaege ausfuehrende handwerkzeugmaschine
GB2071809A (en) * 1980-03-13 1981-09-23 Kubokawa M Vibration prevention handle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628004A1 (de) * 1986-08-18 1988-02-25 Langenstein Feld Garten Arbeitsgeraet, wie gartengeraet, putzgeraet oder dergl.
WO1989008292A1 (fr) * 1988-03-04 1989-09-08 Allied-Signal Inc. Ensemble constitue d'un bouton et d'un axe
EP0354368A2 (fr) * 1988-08-08 1990-02-14 Sterling Winthrop Inc. Pièce d'embrayage pour des pistons de seringues hypodermiques
US4931043A (en) * 1988-08-08 1990-06-05 Sterling Drug Inc. Ratchet connector for hypodermic syringe pistons
EP0354368A3 (en) * 1988-08-08 1990-11-07 Sterling Drug Inc. Connector for hypodermic syringe pistons
EP0411470A1 (fr) * 1989-08-02 1991-02-06 Adolf Würth GmbH & Co. KG Manche d'outil
DE4320172C1 (de) * 1993-06-18 1994-07-14 Hasco Normalien Hasenclever Co Drehbetätigungsgriff für eine Formschlußaufnahme, wie Innengewinde od. dgl.
EP1358968A1 (fr) * 2002-04-30 2003-11-05 Positec Power Tools (Suzhou) Co., Ltd. Outil à moteur pourvu d'une poignée amortissant les vibrations
WO2009047060A1 (fr) * 2007-10-01 2009-04-16 Robert Bosch Gmbh Poignée supplémentaire

Also Published As

Publication number Publication date
GB8315540D0 (en) 1983-07-13
EP0128039B1 (fr) 1988-09-14
EP0128039A3 (en) 1986-03-19
DE3473997D1 (en) 1988-10-20

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