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US 4,035,100 AGranted
Drilling tool with a drilling member and a tool holder input unit
AssigneeDibotec Aktiengesellschaft
InventorsWilm Kruger, Gerhard Rumpp, Dieter Scholz
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AssigneeDibotec Aktiengesellschaft
InventorsWilm Kruger, Gerhard Rumpp, Dieter Scholz
Estimating the term…
A drilling tool for use in the tool holder of a drilling machine includes a drilling member and a holder input unit laterally enclosing the end of the drilling member which fits into the tool holder. The holder input unit is hollow and is non-rotatably connected to the drilling member. The input unit consist of an outer sleeve having a large radially outer surface spaced outwardly from the drilling member and webs extending between the drilling member and the sleeve. The outer surface of the sleeve is generally polygonal in cross section transverse to the axis of the drilling member and is shaped to fit into and contact the tool holder. The webs and sleeve of the holder input unit effect the transmission of heat from the drilling member.
Drilling tool for use in the tool holder of a drilling machine comprising a drilling member including an axially elongated shank and an input unit including a shell laterally enclosing said shank and arranged to fit within the tool holder of the drilling machine, said shell being spaced radially outwardly from and non-rotatably connected to said shank, said shell having a large outer circumferential peripheral surface, wherein the improvement comprises that said input unit is hollow, said input unit includes webs axially co-extensive with said shell and said webs extending radially relative to said shank between said shank and said shell, and the outer circumferential peripheral surface of said shell is arranged to fit within the tool holder of the drilling machine.
Dependencies are inferred from the claim text.