Back to results
US 2004/0189234 A1Published application
Uniaxial drive unit
AssigneeTokyo Seimitsu Co., Ltd.
InventorTakashi Fukasawa
Life of this patent
Estimating the term…
Abstract
A uniaxial drive unit is provided with a tiltable pulse generating device having a joystick, which generates a continuous pulse of a frequency corresponding to the tilt angle of the joystick, and a rotary encoder having a knob, which generates a pulse of a frequency corresponding to the turning speed of the knob and generates pulses of the number corresponding to the turning angle of the knob to drive a linear motor. High-speed and medium-speed operations are carried out by using the tiltable pulse generating device, and low-speed fine feed is carried out by using the rotary encoder.
Claims4
A uniaxial drive unit comprising:
- a pulse drive motor having a fixed part and a moving part, which is driven by an applied pulse voltage;
- a fixed table;
- and
- a moving table which is supported so as to be slidable in the uniaxial direction with respect to said fixed table, wherein
- one of said fixed part and moving part is fixed to said fixed table, and the other of said fixed part and moving part is fixed to said moving table,
- a rotary pulse generating device having a knob, which is a device for generating an electric pulse for driving said pulse drive motor, is provided, said rotary pulse generating device generating a pulse of a frequency corresponding to the turning speed of said knob and generating pulses of the number corresponding to the turning angle of said knob, and
- fine feed is provided to said moving table by the pulse generated by said rotary pulse generating device.
4 more elements
Dependencies are inferred from the claim text.