Abutment arrangement and position detector for a piston and cylinder actuator
OwnerKurt Stollinventor
Life of this patent
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Abstract
The invention relates to an abutment arrangement for limiting the stroke of a piston and cylinder actuator. The abutment arrangement comprises an integrated detector which may be in the form of a proximity feeler screwed into a guard housing. The abutment arrangement may be furthermore so designed that it prevents twisting of the piston rod in the cylinder.
Claims19
An adjustable abutment arrangement for a piston and cylinder actuator, comprising a detector integrated in said arrangement, said actuator having a housing with a tube, a piston movable in said tube and a piston rod extending through at least one wall of said actuator housing, affixed abutment connected to said actuator housing having an abutment surface, said detector being affixed to said affixed abutment, said affixed abutment having an end face for blocking movement of said piston to define a stroke of said piston, and adjustment means for adjusting an engagement position between said piston and said affixed abutment for adjusting the stroke, said detector being a proximity feeler selected from the group comprising an electrical detector, an inducive detector, and an electronic detector, comprising a sturdy guard housing in which said proximity feeler is accommodated and defining said affixed abutment, said proximity feeler having a generally cylindrical form and on an external face has a screw thread to screw into a female thread in said guard housing for fitting said proximity feeler thereinto.
An adjustable abutment arrangement for a piston and cylinder actuator, comprising a detector integrated in said arrangement, said actuator having a housing with a tube, a piston movable in said tube and a piston rod extending through at least one wall of said actuator housing, and adjustment means for separate coarse and fine setting of the stroke of the piston and cylinder actuator.
An adjustable abutment arrangement for a piston and cylinder actuator, comprising a detector integrated in said arrangement, said actuator having a housing with a tube, a piston movable in said tube and a piston rod extending through at least one wall of said actuator housing, piston and cylinder actuator having caps shutting off two ends of the tube, said rod extending through at least one of said caps, said abutment arrangement comprising a fixed abutment and a counter abutment for cooperation therewith and placed on a part of said rod extending out of said tube, means for fixing said counter abutment on said rod after being moved along same, said counter abutment being mounted directly on said rod and surrounding same directly, said rod having a portion thereof outside said tube, said portion being provided with a screw thread on which the counter abutment being in the form of a threaded ring, said detector being set back from said fixed abutment face towards said cylinder.
An adjustable abutment arrangement for a piston and cylinder actuator, comprising a detector integrated in said arrangement, said actuator having a housing with a tube, a piston movable in said tube and a piston rod extending through at least one wall of said actuator housing, said detector being a proximity feeler selected from the group comprising an electrical detector, an inductive detector and an electronic detector, a sturdy guard housing in which said proximity feeler is accommodated, said proximity feeler having a sensor surface placed behind the plane of an abutment surface of said guard housing which is meant for engagement by a part movable with said piston.
An adjustable abutment arrangement for a piston and cylinder actuator, comprising a detector integrated in said arrangement, said actuator having a housing with a tube, a piston movable in said tube and a piston rod extending through at least one wall of said actuator housing, affixed abutment connected to said actuator housing having an abutment surface, said detector being fixed to said affixed abutment, said affixed abutment having an end face for blocking movement of said piston to define a stroke of said piston, and adjustment means for adjusting an engagement position between said piston and said affixed abutment for adjusting the stroke, said actuator housing having an end cap, said piston rod extending through said end cap, said fixed abutment comprising a threaded guard threaded into said cap, said detector comprising a feeler threaded into said threaded guard, said threaded guard carrying said end face of said affixed abutment, said feeler having a sensing face recess with regard to said end face of said threaded guard.
An adjustable abutment arrangement for a piston and cylinder actuator, comprising a detector integrated in said arrangement, said actuator having a housing with a tube, a piston movable in said tube and a piston rod extending through at least one wall of said actuator housing, a fixed abutment connected to said actuator housing having an abutment surface, said detector being fixed to said fixed abutment, said fixed abutment having an end face for blocking movement of said piston to define a stroke of said piston, and adjustment means for adjusting an engagement position between said piston and said fixed abutment for adjusting the stroke, a portion of said piston rod extends out of said actuator housing, a counter abutment fixed at an adjustable location on said portion of said piston rod which is outside of said actuator housing, said counter abutment having an end face engageable against the end face of said fixed abutment for defining the stroke of said piston, said counter abutment having a surface for movement adjacent said detector at the end of said piston stroke for activating said detector at the same time that said end faces engage each other.
Dependencies are inferred from the claim text.