EP0359884A2 - Accessoire de ponçage pour outil - Google Patents

Accessoire de ponçage pour outil Download PDF

Info

Publication number
EP0359884A2
EP0359884A2 EP88311675A EP88311675A EP0359884A2 EP 0359884 A2 EP0359884 A2 EP 0359884A2 EP 88311675 A EP88311675 A EP 88311675A EP 88311675 A EP88311675 A EP 88311675A EP 0359884 A2 EP0359884 A2 EP 0359884A2
Authority
EP
European Patent Office
Prior art keywords
attachment according
shaft
ball
parts
attachment
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Withdrawn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
EP88311675A
Other languages
German (de)
English (en)
Other versions
EP0359884A3 (fr
Inventor
Julien Jean Louis Lankry
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0359884A2 publication Critical patent/EP0359884A2/fr
Publication of EP0359884A3 publication Critical patent/EP0359884A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/20—Mountings for the wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/16—Bushings; Mountings

Definitions

  • This invention relates to apparatus which may be fitted to tools in order that various operations may be performed on a desired object and in particular to a sanding attachment which may be fitted to a power tool.
  • a sanding surface is mounted on a disc, the disc being mounted on a shaft via a flexible body part, the flexibility of the body part, and hence of the sanding attachment, being determined by the pressure exerted on the body part by screw adjustment means on the shaft and adjustable axially of the shaft to exert pressure on the body part and increase the rigidity of the attachment or to relieve the pressure on the body part and therefore increase the flexibility of the attachment.
  • An object of the present invention is to provide an improved apparatus of the kind aforesaid.
  • an attachment for a power tool comprising a drive shaft and a driving disc releasably secured to said shaft in coaxial relationship thereto and adapted to receive an abrasive element into engagement therewith, characterised in that the said shaft comprises articularly connected parts and a control sleeve selectively movable relative to and axially of said parts to and from a position wherein said parts are secured in axially aligned disposition by the sleeve.
  • the articulated connection between the shaft parts comprises a recess in a first shaft part and a ball at the adjacent end of a second shaft part, the ball being located in the said recess and being secured therein by a pin extending transversely of the recess and passing through an aperture in the ball.
  • the ball is angularly adjustable about the pin within predetermined limits.
  • a clearance is provided between adjacent regions of the first and second shaft parts to define the adjustment limits aforesaid.
  • the apparatus comprises a drive disc 10, a flexible drive shaft 11 arranged coaxially therewith and a sleeve member 12 movably mounted on the drive shaft 11 in a manner hereafter to be described in more detail.
  • the drive disc 10 is circular and has a dished central section 13 thereto. In the centre of the disc 10 there is a circular hole 14, through which a bolt 16 may extend.
  • a self-adhesive annular foam rubber pad 17 of like outside dimensions to the disc 10 is attached to the outer surface of such disc.
  • the inner diameter of pad 17 corresponds to the diameter of the dished portion 13 of the drive disc 10.
  • Attached to the outer face of pad 17 is an annular pad 18 of Velcro (Registered Trade Mark) material of like radial dimension to pad 17 by which a sanding surface (not shown) can be removably attached to the drive disc 10.
  • the flexible drive shaft 11 comprises first and second shaft parts.
  • First shaft part 19 is generally cylindrical, is of stepped external configuration and has axial blind bores 22, 23 at the respective opposite ends thereof.
  • the bore 22 at the outer end of the first shaft part 19 is screw threaded to receive bolt 16 whilst a pin 24 extends diametrically through the first drive shaft part in the region of blind bore 23, the wall of the shaft part having aligned holes 26, 27 therein to receive such pin.
  • the outer surface of the first drive shaft part 19 is of stepped configuration and radially outwardly extending flanges 28, 29 separated by a reduced diameter region 31, that flange at the outer end of the drive shaft part is screw-threaded to receive the corresponding end of the sleeve member 12.
  • the annular end face of the first shaft part at the inner end thereof is radiussed, as shown at 25 in the drawing.
  • Second shaft part 21 comprises in succession a spherical head 32, a tapered shoulder 33, a solid cylindrical body 34 and a solid cylindrical engagement member 36 adapted at the outer end to engage with a power tool (not shown).
  • the spherical head 32 is provided with a diametric hole formed by two frusto-conical parts through which pin 24 extends joining the shaft parts together.
  • the second shaft part 21 is also screw-threaded in the region of the tapered shoulder 33 to receive the corresponding end of sleeve member 12.
  • Sleeve member 12 is generally cylindrical and hollow and is screw threaded at both ends of the internal surface to engage with respectively the tapered shoulder 33 of the second shaft part 21 or the flange 29 at the outer end of the first shaft part 19.
  • Sleeve member 12 is slidingly received on the external surface of first shaft part 19 and selectively determines the flexibility or rigidity of the attachment. With the corresponding end of sleeve member 12 screwed into engagement with the first shaft part 19 in the region of its outer end then flexibility in the transverse direction is allowed by means of movement of second shaft part 21 relative to first shaft part 19 biassed by a spring 38 provided between the respective shaft parts.
  • the amount of flexibility afforded may be determined by the relative dimensions of the frusto-conical hole 37 and the pin 24 and/or the clearance between the respective shaft parts in the region of the radiussed inner end of the first shaft part 19.
  • the relative movement of the drive shaft parts is restricted to 2.5° in the transverse direction.
  • the attachment is rigid with the two shaft parts maintained in axial alignment with the drive disc 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP88311675A 1988-09-23 1988-12-09 Accessoire de ponçage pour outil Withdrawn EP0359884A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888822437A GB8822437D0 (en) 1988-09-23 1988-09-23 Sanding attachment for tool
GB8822437 1988-09-23

Publications (2)

Publication Number Publication Date
EP0359884A2 true EP0359884A2 (fr) 1990-03-28
EP0359884A3 EP0359884A3 (fr) 1990-07-11

Family

ID=10644157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88311675A Withdrawn EP0359884A3 (fr) 1988-09-23 1988-12-09 Accessoire de ponçage pour outil

Country Status (3)

Country Link
EP (1) EP0359884A3 (fr)
AU (1) AU2731788A (fr)
GB (1) GB8822437D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2726497A1 (fr) * 1994-11-04 1996-05-10 Brookdale Tool Co Ltd Fixation d'outil a moteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU638715B2 (en) * 1989-05-26 1993-07-08 Jim Lazarou The router bit sharpener

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049869A2 (fr) * 1980-10-15 1982-04-21 Reinhold Reiling Meule ou disque de polissage
DE8802552U1 (fr) * 1988-02-26 1988-06-01 Kress-Elektrik Gmbh & Co, Elektromotorenfabrik, 7457 Bisingen, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049869A2 (fr) * 1980-10-15 1982-04-21 Reinhold Reiling Meule ou disque de polissage
DE8802552U1 (fr) * 1988-02-26 1988-06-01 Kress-Elektrik Gmbh & Co, Elektromotorenfabrik, 7457 Bisingen, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2726497A1 (fr) * 1994-11-04 1996-05-10 Brookdale Tool Co Ltd Fixation d'outil a moteur

Also Published As

Publication number Publication date
GB8822437D0 (en) 1988-10-26
EP0359884A3 (fr) 1990-07-11
AU2731788A (en) 1990-03-29

Similar Documents

Publication Publication Date Title
US4710079A (en) Quick change spindle adapter for tool holder
EP1539412B1 (fr) Dispositif de fixation d'une perceuse ou d'une fraiseuse sur un gabarit pour le per age de trous dans une piece
MXPA98001087A (en) Device for attaching trab tools
US5967243A (en) Portable power tool
US5651726A (en) Mounting apparatus for grinding wheels
AU2005204272A1 (en) Quick-clamping device with a hub centering ring to secure a vehicle wheel on the shaft of a wheel-balancing machine
JPH0346685B2 (fr)
NZ213995A (en) Clutch plate centering tool
US5735631A (en) Joint for the swivel bearing of a casing tube of an inclination-adjustable steering column on a casing tube suspension
US5177830A (en) Rotatively driveable tool chucking device
US4611960A (en) Tool holder
US5381709A (en) Application tool for torque-controlled fastening system
CA2298092A1 (fr) Dispositif pour fixer un rotor de pompe
KR900002913A (ko) 언더컷을 가진 드릴 구멍 형성 드릴링 장치
EP0359884A2 (fr) Accessoire de ponçage pour outil
US4944711A (en) Extendable/retractable operational sleeve
US4504179A (en) Clamping sleeve for tools or workpieces
US4726111A (en) Change head for a tool change apparatus
EP0802021B1 (fr) Outil de sertissage pour l'installation de paliers
US3743333A (en) Adjustable connection for a quick change adapter
EP1256777B1 (fr) Ensemble d'un arbre de sortie pour le système de guidage d'une roquette
US3762732A (en) Clamping device or chuck
US5558167A (en) Percussion boring machine
JPH0347775Y2 (fr)
US5975561A (en) Steering shaft attachment

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19910112