EP0951975A1 - Vorrichtung zum automatischen Anheben von Schutzvorrichtungen für eine Werkzeugmaschine - Google Patents
Vorrichtung zum automatischen Anheben von Schutzvorrichtungen für eine Werkzeugmaschine Download PDFInfo
- 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- Withdrawn
Links
Images
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2411619A (en) * | 2004-03-02 | 2005-09-07 | Black & Decker Inc | Planer and thicknesser |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE141764C (de) * |
-
1998
- 1998-04-23 IT IT1998RN000017 patent/IT1305909B1/it active
-
1999
- 1999-03-26 EP EP99830177A patent/EP0951975A1/de not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE141764C (de) * |
Cited By (3)
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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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: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
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: 20000428 |