EP0951975A1 - Vorrichtung zum automatischen Anheben von Schutzvorrichtungen für eine Werkzeugmaschine - Google Patents

Vorrichtung zum automatischen Anheben von Schutzvorrichtungen für eine Werkzeugmaschine Download PDF

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Publication number
EP0951975A1
EP0951975A1 EP99830177A EP99830177A EP0951975A1 EP 0951975 A1 EP0951975 A1 EP 0951975A1 EP 99830177 A EP99830177 A EP 99830177A EP 99830177 A EP99830177 A EP 99830177A EP 0951975 A1 EP0951975 A1 EP 0951975A1
Authority
EP
European Patent Office
Prior art keywords
pin
machine tool
raising machine
protective devices
workpiece
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Withdrawn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
EP99830177A
Other languages
English (en)
French (fr)
Inventor
Gianfranco Scattolari
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.)
CPS Srl
Original Assignee
CPS Srl
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 CPS Srl filed Critical CPS Srl
Publication of EP0951975A1 publication Critical patent/EP0951975A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G21/00—Safety guards or devices specially designed for other wood-working machines auxiliary devices facilitating proper operation of said wood-working machines

Definitions

  • the present invention relates to a device for independently raising machine tool protective devices.
  • the aim of the present invention is, therefore, to overcome the above-mentioned disadvantages.
  • the present invention as described in the claims herein, solves the problem of raising machine tool protective devices by means of the thrust from the workpiece to be machined.
  • One of the advantages of the present invention is basically that the protective device does not have to be moved manually and, as a result, its protective function is further guaranteed.
  • the device automatically adopts the position which provides maximum protection without requiring that the operator evaluates its correct positioning.
  • the present invention relates to a device for independently raising machine tool protective devices.
  • the present invention comprises a set of rotary bodies 1, such as rollers or wheels, connected to one another by a support 2, which is also free to rotate about a pin 3 and which is integral with the protective device 4.
  • a support 2 which is also free to rotate about a pin 3 and which is integral with the protective device 4.
  • Each of the rotary bodies 1 can, therefore, rotate not only about to its own axis 5, shown in Figure 1 but also all together and with the support 2 about the pin 3.
  • the pin 3 For correct operation, when the device 10 is in the home position, the pin 3 must be at a height above that of the axis 5a of the rotary body la which makes contact with a workpiece 6 to be machined.
  • a thrust labelled S in Figure 2 which causes a constraining reaction R localisable in the pin 3.
  • the torque produced causes a clockwise moment and a similar rotation of the entire device 10: subsequently, a second rotary body (1b) moves over the upper edge of the workpiece 6 to be machined, raising the pin 3 and the protective device 4 which is integral with the pin.
  • the workpiece 6 continues to push the rotary body la, further raising the device 10, which moves over the workpiece 6 to be machined.
  • the protective device 4 is above it, with possible settling due to the effects of gravity, corresponding with a position offering maximum protection, in the case of irregularities in the upper surface of the workpiece 6 to be machined.
  • the device 10 comprises three wheels 1, whose centres are separated from one another by an angle of 120°.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Machine Tool Units (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Feeding Of Workpieces (AREA)
EP99830177A 1998-04-23 1999-03-26 Vorrichtung zum automatischen Anheben von Schutzvorrichtungen für eine Werkzeugmaschine Withdrawn EP0951975A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998RN000017 IT1305909B1 (it) 1998-04-23 1998-04-23 Dispositivo per sollevare autonomamente apparecchiature di protezioneper macchine utensili.
ITRN980017 1998-04-23

Publications (1)

Publication Number Publication Date
EP0951975A1 true EP0951975A1 (de) 1999-10-27

Family

ID=11407181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99830177A Withdrawn EP0951975A1 (de) 1998-04-23 1999-03-26 Vorrichtung zum automatischen Anheben von Schutzvorrichtungen für eine Werkzeugmaschine

Country Status (2)

Country Link
EP (1) EP0951975A1 (de)
IT (1) IT1305909B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2411619A (en) * 2004-03-02 2005-09-07 Black & Decker Inc Planer and thicknesser

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE141764C (de) *

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE141764C (de) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2411619A (en) * 2004-03-02 2005-09-07 Black & Decker Inc Planer and thicknesser
US7527080B2 (en) 2004-03-02 2009-05-05 Black & Decker Inc. Planer and thicknesser
US7588063B2 (en) 2004-03-02 2009-09-15 Black & Decker Inc. Planer and thicknesser

Also Published As

Publication number Publication date
IT1305909B1 (it) 2001-05-21
ITRN980017A1 (it) 1999-10-23

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