EP 0236536 A3 19880413 - DRILL STAND WITH FOOT, FOR STONE DRILLING MACHINE
Title (en)
DRILL STAND WITH FOOT, FOR STONE DRILLING MACHINE
Publication
Application
Priority
DE 3603847 A 19860207
Abstract (en)
[origin: EP0236536A2] The drill stand for stone drilling machines possesses a hollow foot. The hollow foot has an opening towards the material to be drilled. The edge of the opening is provided with a sealing collar. The foot is connected to a vacuum pump which generates a negative pressure in the foot so that the foot can be firmly sucked onto the material to be drilled with its opening. The invention is characterised in that the foot is connected to a monitoring element and the monitoring element can act on at least one switch. As a result, it is possible that, in the event of a change in the pressure conditions in the foot, this change can be indicated and the motor of the stone drilling machine switched off. <IMAGE>
IPC 1-7
IPC 8 full level
B25H 1/00 (2006.01)
CPC (source: EP)
B25H 1/0064 (2013.01)
Citation (search report)
- [Y] DE 2238838 A1 19740221 - STEINMUELLER GMBH L & C
- [Y] DE 2944966 A1 19810521 - HILTI AG [LI]
- [A] US 2910895 A 19591103 - WINSLOW JAMES C
- [A] DE 3344064 A1 19850704 - HILTI AG [LI]
- [XP] US 4582460 A 19860415 - SILVERBERG HOWARD Z [US], et al
Designated contracting state (EPC)
CH FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0236536 A2 19870916; EP 0236536 A3 19880413; EP 0236536 B1 19910327
DOCDB simple family (application)
EP 86106737 A 19860516