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Patent Searching and Data


Title:
LINEAR CYLINDER DEVICE
Document Type and Number:
Japanese Patent JP2004225760
Kind Code:
A
Abstract:

To provide a linear cylinder device capable of reducing axial direction space, dispensing with a hydraulic pump, and easily controlling rod speed and pressure.

This linear cylinder device 10 is provided with a first cylinder 16a provide with a first piston 16, and an reciprocal mechanism 20 for the first piston 16. The reciprocal mechanism 20 is disposed through the first piston 16, and it comprises a rotary rod 12 having a circular cross section to be connectable to a rotation drive source, a plurality of roller bearings 21 and 22 to which a protruded ring 25 formed inside inner rings 23 and 24 is inscribed at a specified rotation angle α to an outer circumference of the rotary rod 12, and a support frame 32 disposed to support outer rings 49 and 49a of the roller bearings 21 and 22. As the rotary rod 12 is rotated, the first piston 16 moves linearly along the rotary rod 12.


Inventors:
TOYOTOMI HIDENOBU
Application Number:
JP2003000012279
Publication Date:
August 12, 2004
Filing Date:
January 21, 2003
Export Citation:
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Assignee:
HAINET KK
International Classes:
F15B3/00; F16H25/18; F16J10/02; (IPC1-7): F16H25/18; F15B3/00; F16J10/02
Attorney, Agent or Firm:
中前 富士男