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US RE48,720 E1Granted
Cutter head assembly for a wood planing machine
AssigneeShinmax Industry Co., Ltd.
InventorChin-Yuan Liu
Life of this patent
Estimating the term…
Abstract
A cutter head assembly includes a drive shaft, a blade carrier and a blade unit. The drive shaft has a longitudinal axis and is made of steel. The blade carrier is sleeved and retained on the drive shaft. The blade carrier has a length extending parallel to the longitudinal axis and is made of aluminum alloy. The blade unit is disposed on the blade carrier and surrounds the longitudinal axis.
Claims39
A cutter head assembly comprising:
- a drive shaft having a longitudinal axis and made of steel, said drive shaft having an outer surface formed with a plurality of first positioning sections;
- a blade carrier sleeved and retained on said drive shaft, said blade carrier having a length extending parallel to the longitudinal axis, being made of aluminum alloy, and including a plurality of second positioning sections respectively communicating with said first positioning sections;
- a blade unit disposed on said blade carrierand surrounding the longitudinal axis;
- and
- a plurality of positioning members fixed between said drive shaft and said blade carrier, each of said positioning members being disposed between one of said first positioning sections and a corresponding one of said second positioning sections to prevent rotational displacement of said blade carrier relative to said drive shaft;
- wherein each of said positioning members is configured as a rod extending parallel to the longitudinal axis, each of said first positioning sections being configured as an inner engaging groove extending along the length of said drive shaft, each of said second positioning sections being configured as an outer engaging groove extending along the length of said blade carrier, each of said positioning members being fixedly disposed between one of said first positioning sections and a corresponding one of said second positioning sections.
3 more elements
A cutter head assembly comprising:
- a drive shaft having a longitudinal axis and made of steel, said drive shaft having an outer surface formed with a plurality of first positioning sections;
- a blade carrier sleeved and retained on said drive shaft, said blade carrier having a length extending parallel to the longitudinal axis, being made of aluminum alloy, and including a plurality of second positioning sections respectively communicating with said first positioning sections;
- a blade unit disposed on said blade carrierand surrounding the longitudinal axis;
- and
- a plurality of positioning members fixed between said drive shaft and said blade carrier, each of said positioning members being disposed between one of said first positioning sections and a corresponding one of said second positioning sections to prevent rotational displacement of said blade carrier relative to said drive shaft;
- wherein each of said positioning members is configured as a threaded bolt, each of said first positioning sections being configured as a through hole extending through said drive shaft and having a large-diameter portion and a small-diameter portion opposite to and communicating with said large-diameter portion, each of said second positioning sections communicating with said small-diameter portion of the respective one of said first positioning sections, each of said positioning members extending through said large-diameter portion of one of said first positioning sections and fixedly engaging said small-diameter portion of said one of said first positioning sections and a corresponding one of said second positioning sections.
3 more elements
A cutter head assembly comprising:
- a drive shaft having a longitudinal axis and made of a first metal, said drive shaft having an outer surface formed with a plurality of first positioning sections;
- a blade carrier sleeved and retained on said drive shaft, said blade carrier having a length extending parallel to the longitudinal axis, being made of a second metal different from said first metal, and including a plurality of second positioning sections respectively communicating with said first positioning sections;
- a blade unit disposed on said blade carrier;
- and
- a plurality of positioning members fixed between said drive shaft and said blade carrier, each of said positioning members being disposed between one of said first positioning sections and a corresponding one of said second positioning sections to prevent rotational displacement of said blade carrier relative to said drive shaft;
- wherein each of said positioning members is configured as a rod extending parallel to the longitudinal axis, each of said first positioning sections being configured as an inner engaging groove extending along the length of said drive shaft, each of said second positioning sections being configured as an outer engaging groove extending along the length of said blade carrier, each of said positioning members being fixedly disposed between one of said first positioning sections and a corresponding one of said second positioning sections.
3 more elements
A cutter head assembly comprising:
- a drive shaft having a longitudinal axis and made of a first metal, said drive shaft having an outer surface formed with a plurality of first positioning sections;
- a blade carrier sleeved and retained on said drive shaft, said blade carrier having a length extending parallel to the longitudinal axis, being made of a second metal different from said first metal, and including a plurality of second positioning sections respectively communicating with said first positioning sections;
- a blade unit disposed on said blade carrier;
- and
- a plurality of positioning members fixed between said drive shaft and said blade carrier, each of said positioning members being disposed between one of said first positioning sections and a corresponding one of said second positioning sections to prevent rotational displacement of said blade carrier relative to said drive shaft;
- wherein each of said positioning members is configured as a threaded bolt, each of said first positioning sections being configured as a through hole extending through said drive shaft and having a large-diameter portion and a small-diameter portion opposite to and communicating with said large-diameter portion, each of said second positioning sections communicating with said small-diameter portion of the respective one of said first positioning sections, each of said positioning members extending through said large-diameter portion of one of said first positioning sections and fixedly engaging said small-diameter portion of said one of said first positioning sections and a corresponding one of said second positioning sections.
3 more elements
Dependencies are inferred from the claim text.