| (19) |
 |
|
(11) |
EP 2 233 592 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
16.02.2011 Bulletin 2011/07 |
| (43) |
Date of publication A2: |
|
29.09.2010 Bulletin 2010/39 |
| (22) |
Date of filing: 18.01.2010 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO
PL PT RO SE SI SK SM TR |
| (30) |
Priority: |
27.03.2009 GB 0905254
|
| (71) |
Applicant: Siemens VAI Metals Technologies Ltd. |
|
Bournemouth International Airport
Christchurch
Dorset BH23 6EW (GB) |
|
| (72) |
Inventor: |
|
- McDonald, Ian
Middlesbrough, Cleveland TS7 9AR (GB)
|
| (74) |
Representative: Morgan, Marc |
|
Siemens AG
Postfach 22 16 34
80506 München
80506 München (DE) |
|
| |
|
(57) A taphole drill is provided with a mounting arrangement including a jib arm which
may be slewed about a primary pivot. The jib arm is pivoted itself to provide a first
and a second limb and a control arm is included which is attached to the second of
the limbs and the primary pivot. The control arm sets the angle of the first and second
limbs as the arrangement is slewed. A pivoting link is provided to link the control
arm to the primary pivot. As rotation about the primary pivot occurs the link pivots
to proved two pivoting positions for the control arm. This increases the angle between
the first and second limbs and extends the arrangement until the drill is in a drilling
position. Rotation in the opposite direction retracts the arm until the arrangement
is in a parked position. This reduces the floor area taken up by the taphole drill.