Rodless cylinder assembly

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;
• 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 mount, disposed on opposite side walls of said cylinder barrel;
• and
• guide members provided for said slide mount so as to be guided along said first and second guide means, respectively, said guide members guided along said second guide means having an axial extent included within the region determined by a distance between a pair of piston packings disposed at both ends of said piston member, said guide members having the opposite ends thereof located axially inwardly of the axial ends of said region by a predetermined distance of at least 10 mm.

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;
• 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 mount, disposed on opposite side walls of said cylinder barrel, said second guide means being constituted by parts of inner wall surfaces of axial guide grooves formed in the opposite side walls of said cylinder barrel;
• and
• guide members provided for said slide mount so as to be guided along said first and second guide means, respectively,
• said cylinder barrel being provided with upper surface portions near the longitudinal ends thereof on which are mounted fixing brackets each having a lower surface to which clamping members fitted into said guide grooves are clamped for securing said each bracket to which is secured a stopper for limiting the stroke of the slide mount.

A rodless assembly comprising:

• a cylinder barrel disposed substantially horizontally and provided with an axial bore therein, said barrel having opposite walls and an upper wall in which a slit is formed so as to extend in an axial direction of the cylinder barrel, the cylinder barrel being arranged 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 being shaped to encompass said side walls and upper wall of said cylinder barrel;
• a pair of first guide rails for said slide mount, said guide rails having guide surfaces and disposed on said upper wall of the cylinder barrel on both sides of said slit with the guide surfaces lying substantially in a horizontal plane;
• a pair of second guide rails for said slide mount, disposed on said opposite side walls of the cylinder barrel, said second guide rails being formed by inclined guide surfaces extending downwardly towards a cross-sectionally central portion of the cylinder barrel and located at a lower level than said first guide rails,
• a pair of first guide means provided on an under surface of said slide mount so as to be guided by said first guide rails, respectively;
• and
• a pair of second guide means provided on inner surfaces of the parts of the slide mount, adjoining said side walls of the cylinder barrel, respectively, so as to be guided by said second guide rails.

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 being slidably fitted in said axial bore of the cylinder barrel and having a pair of piston packings provided at two ends thereof;
• 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;
• 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 mount, disposed on opposite side walls of said cylinder barrel;
• and
• guide members provided on said slide mount so as to be guided along said first and second guide means, respectively, said guide members guided along said second guide means having an axial extent included within the region determined by the distance between said piston packings, said guide members having the opposite ends thereof located axially inwardly of the axial ends of said region by a predetermined distance.