Linear drive
AssigneeFesto AG & Co.
InventorKurt Stoll
Life of this patent
Estimating the term…
Abstract
A linear drive which has a housing with a longitudinal slot. A drive part able to be longitudinally moved in the housing is connected by the aid of a link part, running in the longitudinal slot, with a guide part, which is guided for motion on a longitudinal guide arranged outside the housing. As a longitudinal guide a rod guide is provided, which has at least one guide rod adjacent to the housing and spaced from it radially. The guide rod is exposed along its guide stroke and has the guide part encircling it. There is therefore the possibility of accurate guiding of the moving unit without being affected by any tendency of the housing to splay outwards. The costs of manufacture are low.
Claims54
A linear drive comprising a housing which has a longitudinal slot, a drive part able to be moved longitudinally in the housing, a longitudinal guide arranged outside the housing and extending parallel to the direction of movement of the drive part, on which a guide part suitable for connection with a load, is arranged for movement along a guide path in the longitudinal direction, and a link means connecting the drive part with the guide part with the formation of a common longitudinally moving unit and extending through the longitudinal slot, wherein the longitudinal guide is designed in the form of a rod guide, which has at least one guide rod arranged at a radial distance from the housing and next thereto so that it is circumferentially accessible along its guide path, the guide part at least partly surrounding the guide rod,
- wherein the guide rod is secured in position on the housing by means of two holders spaced apart in the direction of movement in relation to each other, between which holders the guide path is arranged,
- wherein on at least one holder a stroke limiting abutment is provided projecting into the path of the guide part, and,
- wherein for adjustable preset of guide strokes of different length at least one holder is arranged on the housing so as to be adjustable in the direction of motion and furthermore the guide rod is arranged on at least one of the holders so as to be adjustable in the direction of movement of the moving unit.
A linear drive comprising a housing which has a longitudinal slot, a drive part able to be moved longitudinally in the housing, a longitudinal guide arranged outside the housing and extending parallel to the direction of movement of the drive part, on which a guide part suitable for connection with a load, is arranged for movement along a guide path in the longitudinal direction, and a link means connecting the drive part with the guide part with the formation of a common longitudinally moving unit and extending through the longitudinal slot, wherein the longitudinal guide is designed in the form of a rod guide, which has at least one guide rod arranged at a radial distance from the housing and next thereto so that it is circumferentially accessible along its guide path, the guide part at least partly surrounding the guide rod,
- wherein the guide rod is secured in position on the housing by means of two holders spaced apart in the direction of movement in relation to each other, between which holders the guide path is arranged, and
- wherein at least one such holder is arranged axially outside the longitudinal slotted housing section.
A linear drive comprising a housing which has a longitudinal slot, a drive part able to be moved longitudinally in the housing, a longitudinal guide arranged outside the housing and extending parallel to the direction of movement of the drive part, on which a guide part suitable for connection with a load, is arranged for movement along a guide path in the longitudinal direction, and a link means connecting the drive part with the guide part with the formation of a common longitudinally moving unit and extending through the longitudinal slot, wherein the longitudinal guide is designed in the form of a rod guide, which has at least one guide rod arranged at a radial distance from the housing and next thereto so that it is circumferentially accessible along its guide path, the guide part at least partly surrounding the guide rod, and
- wherein the guide rod is arranged in an axial-radial plane containing the longitudinal axis of the drive part and the longitudinal slot, the guide part being positioned radially opposite to the longitudinal slot.
Dependencies are inferred from the claim text.