Rodless cylinder
AssigneeCDK Corporation
InventorsTerumasa Takeuchi, Yoshinori Nozawa, Daiju Maki, Masatoshi Shiino
Life of this patent
Estimating the term…
Abstract
Disclosed is a rodless cylinder having a cylinder barrel with a slit formed axially therein. A piston is movably housed in the cylinder barrel. A mounting table is disposed movably along the external surface of the cylinder barrel and connected to the piston through the slit. An external actuator is mounted on the mounting table and designed to be driven by a pressure fluid. A passage, through which a pressure fluid can pass, is defined in the cylinder barrel. An inlet is provided in the cylinder barrel so as to introduce the pressure fluid in the passage to the mounting table side. An outlet is provided on the mounting table so as to supply the pressure fluid introduced from the inlet to the external actuator.
Claims16
A rodless cylinder comprising:
- a cylinder barrel having a primary passage and a secondary passage extending axially and having first and second slits communicating to the primary and secondary passages, respectively;
- a piston movably housed in the primary passage;
- a movable member movably housed in the secondary passage;
- a mounting table disposed movably along said cylinder barrel and connected to said piston and the movable member through the first and second slits;
- an external actuator mounted on said mounting table and driven by a pressure fluid;
- said secondary passage for allowing the pressure fluid to pass therethrough;
- said second slit for allowing the pressure fluid in said secondary passage to be delivered to the mounting table side;
- and
- an outlet defined on said mounting table for communicating to the second slit and for delivering the pressure fluid from said inlet to said external actuator.
A rodless cylinder comprising:
- a cylinder barrel with a slit formed axially therein;
- a piston movably housed in said cylinder barrel;
- a mounting table disposed movably along the external surface of said cylinder barrel and connected to said piston through said slit;
- and
- an inner seal belt disposed along the inner edges of said slit and partly inserted to the lower portion of said piston and an outer seal belt disposed along the outer edges of said slit and partly inserted to the upper portion of said piston, so as to seal the inside of the cylinder barrel hermetically;
- wherein said inner seal belt comprises an elastic base material and a reinforced material woven into a fabric by using flexible reinforced fibers, said reinforced material being embedded in the base material.
A rodless cylinder comprising:
- a cylinder barrel with a slit formed axially therein;
- a piston movably housed in said cylinder barrel;
- a mounting table disposed movably along the external surface of said cylinder barrel and connected to said piston through said slit;
- and
- an inner seal belt disposed along the inner edges of said slit and partly inserted to the lower portion of said piston and an outer seal belt disposed along the outer edges of said slit and partly inserted to the upper portion of said piston, whereby to seal the inside of the cylinder barrel hermetically;
- wherein said inner seal belt is provided with a conductive material and an electric circuit which detects disconnection of said conductive material and outputs a predetermined signal.
Dependencies are inferred from the claim text.