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US 5,398,454 AGranted
Surface grinding machine
AssigneeRobert Bosch GmbH
InventorGerd Berner
Life of this patent
Estimating the term…
Abstract
A surface grinding machine has a transmission housing, a grinding disc arranged movably on the transmission housing, a rotating drive which oscillatingly drives the grinding disc,and an angular transmission for transmitting a rotation of the rotating drive to the grinding disc and formed as a bendable shaft.
Claims18
A surface grinding machine, comprising a rigid transmission housing having a tubular narrowing region;
- a grinding disc arranged movable on said transmission housing;
- a rotating drive which oscillatingly drives said grinding disc and includes a motor formed as an electric motor;
- an angular transmission for transmitting a rotation of said rotating drive to said grinding disc, said angular transmission being formed as a bendable shaft, said bendable shaft being formed so as to cover an unchangeable angle of 90.degree.-130.degree. between an axis of said drive and an axis of said grinding disc, said bendable shaft having ends and being guided between said ends in said tubular narrowing region of said rigid transmission housing;
- and an eccentric pin which is provided at one of said ends of said bendable shaft and supports said grinding disc and drives the latter into a rotating circulating movement so that said grinding disc is supported by said one end of said bendable shaft, said bendable shaft having a central region;
- and a short immovable tubular supporting part which guides only said central region of said bendable shaft.
2 more elements
A surface grinding machine, comprising a rigid transmission housing having a tubular narrowing region;
- a grinding disc arranged movable on said transmission housing;
- a rotating drive which oscillatingly drives said grinding disc and includes a motor formed as an electric motor;
- an angular transmission for transmitting a rotation of said rotating drive to said grinding disc, said angular transmission being formed as a bendable shaft, said bendable shaft being formed so as to cover an unchangeable angle of 90.degree.-130.degree. between an axis of said drive and an axis of said grinding disc, said bendable shaft having ends and being guided between said ends in said tubular narrowing region of said rigid transmission housing;
- and an eccentric pin which is provided at one of said ends of said bendable shaft and supports said grinding disc and drives the latter into a rotating circulating movement, said grinding disc being formed as an arcuate triangular member so that said grinding disc is supported by said one end of said bendable shaft, said bendable shaft having a central region;
- and a short immovable tubular supporting part which guides only said central region of said bendable shaft.
2 more elements
Dependencies are inferred from the claim text.