Abstract An apparatus for lifting (or, otherwise handling) objects, involving a plurality of movable contact members spatially arranged on a longitudinally extendible control element in which control element is movably connected with one or more transverse link mechanisms. According to the invention, each transverse link mechanism is comprised of an extensible and constrictable element, (e.g., a lazy tong mechanism) which is supported by a carriage in the lifting device, in turn, is provided with mountings for the control elements which carry and adjust suction cups in the longitudinal direction so that the longitudinal adjustment of the control elements (and thereby of the suction cups) is accomplished by means of movement of the carriage relative to the lifting device or another carriage. The adjustment of the suction cups in the transverse direction is accomplished by extension or constriction of the transverse link mechanism to increase or decrease the spacing of the control elements.
An arrangement in a suction lifting device for the handling of objects by means of a number of suction cups which are arranged in a spaced relationship on at least two control elements extensible in the longitudinal direction for adjusting the mutual distance of the suction cups in the longitudinal direction of functionally associated control elements, whereby the control elements are connected by means of at least one transverse link mechanism for adjusting the distance of the control elements and thus of the suction cups in the transverse direction, to bring the positions of cups to coincide with predetermined points of engagement on objects to be lifted, the improvement according to which each transverse link mechanism is comprised of an extensible and constrictable element, which is supported by a movable carriage in the lifting device, and in turn is provided with mountings for the control elements whose adjustment in the longitudinal direction is accomplished by the movement of the movable carriage relative to another part of the lifting device, and in the transverse direction, by extension and constriction of the transverse link mechanism.
Claim 2
Dependent Claim
183 words
An arrangement in a suction lifting device for the handling of objects by means of a number of suction cups which are arranged in a spaced relationship on at least two control elements extensible in the longitudinal direction for adjusting the mutual distance of the suction cups in the longitudinal direction of functionally associated control elements, whereby the control elements are connected by means of at least one transverse link mechanism for adjusting the distance of the control elements and thus of the suction cups in the transverse direction, to bring the positions of cups to coincide with predetermined points of engagement on objects to be lifted, the improvement according to which each transverse link mechanism is comprised of an extensible and constrictable element, which is supported by a movable carriage in the lifting device, and in turn is provided with mountings for the control elements whose adjustment in the longitudinal direction is accomplished by the movement of the movable carriage relative to another part of the lifting device, and in the transverse direction, by extension and constriction of the transverse link mechanism.
Claim 3
Dependent Claim
37 words
An arrangement as defined in claim 1, according to which the control elements are of pantograph mechanism type and the suction cups are suspended rotatably on a substantially horizontal journal common to two links of the mechanism.
Claim 4
Dependent Claim
25 words
An arrangement as defined in claim 1, wherein the control elements are readily exchangEably mounted in the transverse link mechanism by means of conical bushings.
Claim 5
Dependent Claim
28 words
An arrangement as defined in claim 3, wherein the transverse link mechanism is provided with joints into which the control elements are pushed and locked by a rod.