Grinding machine
AssigneeRyobi Ltd.
InventorsTatsuya Wada, Kouichi Miyamoto, Takeshi Shiotani, Shoji Takahashi
Life of this patent
Estimating the term…
Abstract
A grinding machine has a driving mechanism for rotating a drive shaft, a sander supported on the drive shaft, a bracket provided swingably on a housing for supporting the drive shaft, a drive shaft moving mechanism for moving the drive shaft in the axial direction, a hollow member supported on the bracket for ratably support the drive shaft, a drive shaft position switching mechanism for moving the hollow cylinder in its axial direction to take selectably two positions whereby the drive shaft can take smoothly two positions in one of which the drive shaft is not moved in its axial direction, and in the other of which the drive shaft is moved it its axial direction.
Claims18
A grinding machine comprising:
- a) a driving shaft;
- b) a sander provided on the drive shaft for grinding a workpiece;
- c) a drive shaft driving mechanism for rotating the drive shaft;
- d) a drive shaft moving mechanism including first and second rotational members which are rotated by the drive shaft driving mechanism at revolution numbers different from each other, cam means mounted to one of the first and second rotational members and an abutment member provided for the other one of the first and second rotational members;
- e) a drive shaft support member disposed on an outer peripheral portion of the drive shaft for rotatably supporting the drive shaft to be movable together with the drive shaft in an axial direction thereof;
- f) a link mechanism mounted to a bracket to be swingable so as to support the drive shaft support member;
- and
- g) a drive shaft position switching mechanism for moving the drive shaft support member selectively to a position at which the cam means of the drive shaft moving mechanism abuts against the abutment member and to a position at which the cam means of the drive shaft moving mechanism does not abut against the abutment member.
A grinding machine which comprises a sander mounted to a drive shaft and adapted to grind a workpiece, a drive shaft driving mechanism for rotating the drive shaft and a drive shaft moving mechanism for moving the drive shaft in an axial direction thereof during a grinding working, the grinding machine further comprising:
- a drive shaft support member disposed on an outer peripheral portion of the drive shaft for rotatably supporting the drive shaft to be movable together with the drive shaft in an axial direction thereof;
- and
- a link mechanism mounted to a bracket to be swingable so as to support thee drive shaft support member.
Dependencies are inferred from the claim text.