WO1995021039A1 - Outil a main - Google Patents

Outil a main Download PDF

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Publication number
WO1995021039A1
WO1995021039A1 PCT/RO1994/000005 RO9400005W WO9521039A1 WO 1995021039 A1 WO1995021039 A1 WO 1995021039A1 RO 9400005 W RO9400005 W RO 9400005W WO 9521039 A1 WO9521039 A1 WO 9521039A1
Authority
WO
WIPO (PCT)
Prior art keywords
central shaft
rotary
driving
machine
helical spring
Prior art date
Application number
PCT/RO1994/000005
Other languages
English (en)
Inventor
Dumitru Panu Misailescu
Eugenia Panu Misailescu
Original Assignee
Dumitru Panu Misailescu
Eugenia Panu Misailescu
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 Dumitru Panu Misailescu, Eugenia Panu Misailescu filed Critical Dumitru Panu Misailescu
Priority to AU12056/95A priority Critical patent/AU1205695A/en
Publication of WO1995021039A1 publication Critical patent/WO1995021039A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/10—Means for driving the impulse member comprising a cam mechanism
    • B25D11/102—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/04—Handles; Handle mountings
    • B25D17/043—Handles resiliently mounted relative to the hammer housing
    • 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
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • 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

Definitions

  • This invention relates to a portable hand-held machine generating a rotary or rotary-and-translation motion, for boring works and the like.
  • the invention solves the technical problem by providing a portable machine which generates a rotary or rotary-and-translation motion, which allows the adjustment of the axial drive, irrespective of the operator's action.
  • the machine eliminates the disadvantages previously mentioned by providing an e ctic motor in a radial handle, which ensures, through both a double cardan joint and a driving toothed wheel, the driving of a driven-geared front wheel, connected with a central shaft which also holds a helical spring for pressure and a helical spring for stretching which operates to a pair of axial cams, connected with the central shaft through a cross joint, cams that provide the correlation of their contact surface with the lenght of the tool's movement through a posterior member, movable with an adjustment nut along the central shaft.
  • the machine provides the following advantages:
  • FIG. 1 is an axial longitudinal section of a machine embodying the invention
  • -FIG. 2 is a front elevation of a machine embodying the invention
  • -FIG. 3 is a cross-section of a movable cross joint
  • -FIG. 4 is a front elevation of the helping handle
  • -FIG. 5 is a front elevation of the central member of the movable cross joint.
  • the machine consists in an electric motor 1 , with a wire 2 and a switch 3 for the electric power supply.
  • the motion is transmitted from the motor 1 through a double cardan wave.
  • the shaft of the cardan wave 4 is supported in a radial bearing member 5 and bears a driving toothed wheel 6
  • the wneel 6 drives a d ⁇ ven-geare ⁇ wheel 7 mounted on a central shaft 8
  • the shaft is supported in a radial-axial bearing member 9 and in a cross joint 10 necessary to self-centring.
  • a cam 1 1 is mounted, which rotates together with the shaft and is conjugated with another cam 1 1 , mounted with the shaft 8 on the cross joint 10.
  • an adjustment member 1 2 is mounted, which co-operates with a helical spring for pressure 1 3 and a helical spring for stretching 14.
  • the positional adjustment of the adjustment member 12 is provided by a nut 15.
  • An elastic ring 1 6 brings the housing of the wheel 7 in relation with the radial-axial bearing member 9 which, in turn, is mounted in a housing 1 7 having a lid 18 upon the cross joint 10.
  • a number of damping members 1 9 ensures the connection between the housing 17 and a handle 20, where the motor 1 is placed.
  • a helping handle 21 is fastened to the housing 17 near the adjustment member 12.
  • On the anterior side of the housing 1 7 a speed- change gear 22, known in itself and an electronic command block 23 are mounted.
  • the wire 2 supplies the electric power for the motor 1 when the switch 3 is turned, so that the rotary motion is transmitted to the kinematic chain of the machine.
  • the elastic connection of double cardan wave 4 type fastened with one end to the shaft of the electric motor 1 and with another end to the radial bearing member 5, ensures the rotary motion of the driving wheei 6, which in turn drives the driven-geared wheel 7, in order to generate the movement of shaft 8.
  • the driven-geared wheel 7 is fastened by the mean of radial-axial bearing member 9, having internal slots with conjugated axis upon the shaft 8, so that the shaft 8 is driven, centred to one end and moved in axial direction.
  • the central adjustment of the other end of shaft 8, required during functioning, is provided by the mean of a movable cross joint 1 0.
  • the two axial cams 1 1 are not in contact to one another.
  • One of the cams is fastened on the shaft 8 and the other one on the central member of the movable cross joint 10.
  • the movement is controlled by the thread pitch of the adjustment member 1 2.
  • the lenght of the contact surface between the two axial cams is proportionaly with the axial movement of shaft, consequently, when a longer drive is desired, the member 1 2 will be accordingly unrolled and when the cancelling of the axial movement is desired, the threading of the member 1 2 will be done according to the initial position.
  • the adjustment member 12 is secured by the nut 15.
  • the fastening of the driven-geared wheel 7, in order to prevent the axial movement, is provided by the mean of the ring 16. Whithin the housing 7 there can be oil or vaseline for oiling the pieces during functioning.
  • the movable cross joint 10 is fastened. Damping member.s 1 9 provides the decrease of the transmission of shocks and vibrations to>the operator.
  • the machine can also be provided with a helping handle 21.
  • a speed-change gear 22 is provided, which can also be a potentiometer that can modify the parameters of the power which supplies the electric motor 1 through the electronic command block 23.
  • the axial cams 1 1 ensure an angle from 0 to 180.
  • the oiling agent penetrates into the contact zone between the two axial cams by the mean of microchannels.
  • the axial cams provide a feature called pitch, similar to the thread pitch, that can be choosen according to the desired aim. There is a lineal contact between the two axial cams 1 1 , so that the surfaces in contact are equally loaded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Outil à main produisant un mouvement de rotation ou de rotation et de translation et permettant de réaliser des perçages ou analogue. L'outil est pourvu d'un moteur électrique (1) placé dans un manche radial (20) et destiné à entraîner une roue dentée entraînée (7) par l'intermédiaire d'un double joint de cardan (4) et d'une roue dentée d'entraînement (6) fixée à un axe central (8) qui porte également un ressort à boudin de compression (13) et un ressort à boudin d'étirage (14) commandant une paire de cames axiales (11) portées respectivement par un joint en croix (10). La longueur de la zone de contact par rapport à la longueur entraînée de l'outil est réglée par un élément de réglage (12) monté mobile le long de l'axe central (8) et muni d'un écrou de réglage (15).
PCT/RO1994/000005 1994-02-04 1994-12-15 Outil a main WO1995021039A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12056/95A AU1205695A (en) 1994-02-04 1994-12-15 Portable hand-held machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RO9400164 1994-02-04
RO94-00164 1994-02-04

Publications (1)

Publication Number Publication Date
WO1995021039A1 true WO1995021039A1 (fr) 1995-08-10

Family

ID=20100431

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RO1994/000005 WO1995021039A1 (fr) 1994-02-04 1994-12-15 Outil a main

Country Status (2)

Country Link
AU (1) AU1205695A (fr)
WO (1) WO1995021039A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997021524A1 (fr) * 1995-12-12 1997-06-19 Panu Misailescu Dumitru Machine polyvalente electroportative
GB2376913A (en) * 2001-06-25 2002-12-31 Bosch Gmbh Robert Vibration isolated handle having restricted movement
WO2004108331A2 (fr) * 2003-06-11 2004-12-16 Cambridge Consultants Ltd Dispositif actionne par manivelle
AU2004203594B2 (en) * 2003-08-06 2006-09-14 Hitachi Koki Co., Ltd. Impact drill
EP2394765A1 (fr) * 2010-06-14 2011-12-14 Anton Wittwer Perceuse à percussion
EP2796247A1 (fr) * 2013-04-26 2014-10-29 C. & E. Fein GmbH Machine-outil
US9193053B2 (en) 2008-09-25 2015-11-24 Black & Decker Inc. Hybrid impact tool
US9216504B2 (en) 2010-03-23 2015-12-22 Black & Decker Inc. Spindle bearing arrangement for a power tool
USRE46827E1 (en) 2009-12-23 2018-05-08 Black & Decker Inc. Hybrid impact tool with two-speed transmission

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2228801A (en) * 1938-07-19 1941-01-14 Black & Decker Mfg Co Electric tool
US2490449A (en) * 1948-06-24 1949-12-06 Lynch Lawrence Combination reciprocating and rotating tool
GB2048753A (en) * 1979-04-30 1980-12-17 Hilti Ag Hammer Drill
GB2102718A (en) * 1981-07-24 1983-02-09 Black & Decker Inc Improvements in or relating to rotary percussive drills

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2228801A (en) * 1938-07-19 1941-01-14 Black & Decker Mfg Co Electric tool
US2490449A (en) * 1948-06-24 1949-12-06 Lynch Lawrence Combination reciprocating and rotating tool
GB2048753A (en) * 1979-04-30 1980-12-17 Hilti Ag Hammer Drill
GB2102718A (en) * 1981-07-24 1983-02-09 Black & Decker Inc Improvements in or relating to rotary percussive drills

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997021524A1 (fr) * 1995-12-12 1997-06-19 Panu Misailescu Dumitru Machine polyvalente electroportative
GB2376913A (en) * 2001-06-25 2002-12-31 Bosch Gmbh Robert Vibration isolated handle having restricted movement
GB2376913B (en) * 2001-06-25 2003-08-13 Bosch Gmbh Robert Additional handle
US6863479B2 (en) 2001-06-25 2005-03-08 Robert Bosch Gmbh Supplemental handle
WO2004108331A2 (fr) * 2003-06-11 2004-12-16 Cambridge Consultants Ltd Dispositif actionne par manivelle
WO2004108331A3 (fr) * 2003-06-11 2006-03-02 Cambridge Consultants Dispositif actionne par manivelle
AU2004203594B2 (en) * 2003-08-06 2006-09-14 Hitachi Koki Co., Ltd. Impact drill
US9193053B2 (en) 2008-09-25 2015-11-24 Black & Decker Inc. Hybrid impact tool
US10513021B2 (en) 2008-09-25 2019-12-24 Black & Decker Inc. Hybrid impact tool
USRE46827E1 (en) 2009-12-23 2018-05-08 Black & Decker Inc. Hybrid impact tool with two-speed transmission
US9216504B2 (en) 2010-03-23 2015-12-22 Black & Decker Inc. Spindle bearing arrangement for a power tool
EP2394765A1 (fr) * 2010-06-14 2011-12-14 Anton Wittwer Perceuse à percussion
EP2796247A1 (fr) * 2013-04-26 2014-10-29 C. & E. Fein GmbH Machine-outil
US9689479B2 (en) 2013-04-26 2017-06-27 C. & E. Fein Gmbh Machine tool

Also Published As

Publication number Publication date
AU1205695A (en) 1995-08-21

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