Rotatable cylinder
AssigneeChia Her Machinery Co., Ltd.
InventorChun-Chih Chen
Life of this patent
Estimating the term…
Abstract
A cylinder has a rotating member, a cap, a piston, a collar, two control valves and two check valves. The piston is moveably mounted between the rotating member and the cap. The piston has a flange dividing the inner space between the rotating member and the cap into two chambers. The control valves are attached to the rotating member, respectively communicate with the chambers and respectively communicate with two I/O channels in the collar. The check valves are attached to the rotating member, respectively communicate with the chambers and respectively communicate with the I/O channels in the collar. Accordingly, the thickness of the flange of the piston can be decreased so as to reduce the weight of the cylinder, and the torsion for rotating the cylinder and the load to the axle of the machine are also reduced.
Claims14
A rotatable cylinder for a machine comprising:
- a rotating member having a first end and a second end;
- a cap securely attached to the first end of the rotating member to define an inner space between the cap and the first end of the rotating member;
- a piston moveably mounted in the rotating member and having a rod extending outward from the second end of the rotating member and a flange formed on the rod to divide the inner space into a first chamber and a second chamber;
- a collar mounted around the rotating member and having a first I/O channel and a second I/O channel defined in the collar;
- a first control valve attached to the rotating member and having a first end communicating with the first chamber and a second end communicating with the first I/O channel in the collar;
- a second control valve attached to the rotating member and having a first end communicating with the second chamber through an I/O passage defined between the cap and the rotating member and a second end communicating with the second I/O channel in the collar;
- a first check valve attached to the rotating member and having a first end communicating with the first chamber and a second end communicating with the first I/O channel in the collar;
- and
- a second check valve attached to the rotating member and having a first end communicating with the second chamber through a check passage defined in the cap and the rotating member and a second end communicating with the second I/O channel in the collar.
Dependencies are inferred from the claim text.