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A rodless cylinder assembly comprises a cylinder barrel provided with an axial bore in which a piston is slidably fitted and a slit formed in the outer surface thereof so as to be directed upwardly. A slide mount is operatively connected to the piston through connecting member integrally formed with

A rodless cylinder assembly comprises a cylinder barrel provided with an axial bore in which a piston is slidably fitted and a slit formed in the outer surface thereof so as to be directed upwardly. A slide mount is operatively connected to the piston through connecting member integrally formed with the piston and projecting outwardly through the slit to be slidable along the upper surface of the cylinder barrel in an axial direction in accordance with the movement of the piston. The slide mount is slid along first guide rails disposed on the upper surface of the cylinder barrel at both sides of the slit and along second guide rail formed in opposite side walls of the cylinder barrel. Guide members are disposed between the second guide rails and side depending walls portions of the slide mount and the clearance between the second guide rails and the guide members can be adjusted by screw means. Each of the second guide rails has a guide surface inclined inwardly towards a cross-sectionally central portion of the cylinder barrel. The above construction makes it possible to cause the slide mount to move smoothly along the cylinder barrel irrespective of external forces acting on the assembly.

대표청구항 ▼

A rodless cylinder assembly, comprising: a cylinder barrel provided with an axial bore and an outer wall in which a slit is formed so as to extend in an axial direction of the cylinder barrel, the cylinder barrel being arranged substantially horizontally with said slit being directed upwardly; a pis

A rodless cylinder assembly, comprising: a cylinder barrel provided with an axial bore and an outer wall in which a slit is formed so as to extend in an axial direction of the cylinder barrel, the cylinder barrel being arranged substantially horizontally with said slit being directed upwardly; a piston member slidably fitted in said axial bore of the cylinder barrel; connecting means formed integrally with said piston member so as to project outwardly through said slit; sealing means for sealing said slit; a slide mount operatively connected to said connecting means to be slidable along the outer wall surface of said cylinder barrel in accordance with the movement of said piston member in the axial bore of said cylinder barrel, said slide mount comprising a central base portion and a pair of depending wall portions extending downwardly from both longitudinal sides of said base portion so as to be located outwardly of, and close to opposite side walls of said cylinder barrel, said depending wall portions rotatably supporting guide rods having planar guide surfaces, said base portion of the slide mount being provided in one longitudinal side portion with a cut-in slot so that one of said depending wall portions is elastically deformable inwardly and the amount of deformation is adjustable by screw means screwed in said slide mount form one side thereof; first guide means for said slide mount, said guide means having guide surfaces and disposed on an upper wall surface of said cylinder barrel on both sides of said slit with the guide surfaces lying substantially in a horizontal plane; second guide means for said slide amount, disposed on the opposite side walls of said cylinder barrel, said second guide means being inclined guide surfaces disposed on the opposite side walls of said cylinder barrel and inclined downwardly towards a cross-sectionally central portion of the cylinder barrel, said inclined guide surfaces engaging said planar guide surfaces of the guide rods, respectively; and guide members provided for said slide mount so as to be guided along said first guide means.