Drive shaft moving device
OwnerToshiaki Shimadainventor
Life of this patent
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Abstract
A drive shaft moving apparatus of the present invention includes a drive shaft 1 with a screw groove 3 formed in spiral shape, and a nut 5 fitted around the drive shaft 1 and being rotatably supported on a main flame 15 so as to allow the drive shaft 1 to axially move. The apparatus is characterized in that a fixing means 17 is provided on a side of the main flame 15 for preventing the drive shaft 1 from rotating, the fixing means 17 includes a guided member 24 being capable of moving along a guide member 4 formed on the drive shaft 1 in the axial direction, and the guided member 24 is disposed between the nut 5 and the drive shaft 1.
Claims5
A drive shaft moving apparatus comprising a drive shaft (1) with a screw groove (3) formed in a spiral shape, and a nut (5) fitted around the drive shaft (1), the nut (5) being rotatably supported on a main flame (15) so as to allow the drive shaft (1) to axially move, characterized in that a fixing means (17) is provided on a side of the main flame (15) for preventing the drive shaft (1) from rotating, the fixing means (17) includes a guided member (24) being capable of moving along a guide member (4) formed on the drive shaft (1) in the axial direction, and the guided member (24) is disposed between the nut (5) and the drive shaft (1).
A drive shaft moving apparatus comprising a drive shaft (1) with a screw groove (3) formed in a spiral shape, and a ball screw nut (5) fitted around the drive shaft (1) via balls (8) rolling along the screw groove (3), the ball screw nut (5) being rotatably supported on a main flame (15) so as to allow the drive shaft (1) to axially move, characterized in that a fixing means (17) is provided on a side of the main flame (15) for preventing the drive shaft (1) from rotating, the fixing means (17) includes a guided member (24) being capable of moving along a guide member (4) formed on the drive shaft (1) in the axial direction, and the guided member (24) is disposed between the nut (5) and the drive shaft (1) in such a manner as to allow the balls (8) to roll thereover.
Dependencies are inferred from the claim text.