Shaft drive device and component mounting device
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorKazuhiro Terada
Life of this patent
Estimating the term…
Abstract
A shaft drive device includes a plurality of shafts each retained in a raisable and lowerable manner; a return spring for urging each of the shafts upward; an actuating member contactable with a pressed part of any one of the shafts for raising and lowering a selected shaft; and a raising and lowering mechanism which changes a posture of the actuating member between a first posture of coming into contact with the pressed part of the shaft and pressing the pressed part to lower the shaft against an urging force of the return spring and a second posture of releasing the pressing. The pressed part of the shaft is made of ferromagnet, and the actuating member is given a magnetic force.
Claims20
A shaft drive device comprising:
- a plurality of shafts each having a pressed part and retained in a raisable and lowerable manner, the pressed part having a ferromagnet;
- a return spring provided for each of the shafts to urge a respective shaft upward;
- an actuating member, given a magnetic force, and contactable with the pressed part of a selected shaft of the shafts for raising and lowering the selected shaft;
- and
- a raising and lowering mechanism configured to change a posture of the actuating member between a first posture of coming into contact with the pressed part of the selected shaft and pressing the pressed part to lower the selected shaft against an urging force of the return spring and a second posture of releasing the pressed part.
A component mounting device including a rotary head for mounting a component onto a board, wherein
- the rotary head includes:
- a plurality of shafts each having a pressed part at an upper end thereof and a component suction nozzle at a lower end thereof, the pressed part having a ferromagnet;
- a rotating body which retains the shafts in an annual form around a central axis of the rotating body in a raisable and lowerable manner, and rotates about the central axis;
- a return spring provided for each of the shafts to urge a respective shaft upward;
- an actuating member, given a magnetic force, and contactable with the pressed part of a selected shaft of the shafts for raising and lowering the selected shaft;
- a raising and lowering mechanism configured to change a posture of the actuating member between a first posture of coming into contact with the pressed part of the selected shaft and pressing the pressed part to lower the selected shaft against an urging force of the return spring and a second posture of releasing the pressed part;
- and
- a rotation driving mechanism configured to drive a rotation of the rotating body so that the pressed part of the selected shaft comes under an arranged position of the actuating member.
Dependencies are inferred from the claim text.