Abstract: The present invention relates to a vacuum manipulating device with a suction device, which can be connected via a lifting hose with a device generating a vacuum and which, for creating a suction on an object to be lifted or transported, can be placed on the latter. The suction device includes a control valve device with an opening which can be unblocked and blocked for controlling the vacuum prevailing in the interior of the suction device. The control valve device has a control element, which unblocks or blocks the opening and can be pivoted or rotated in the one or the other direction which, in the non-actuated state, takes up a settable neutral position with a degree of opening corresponding to the setting. In order to be able to set a defined poise, the device in accordance with the present invention is embodied such, that the control element is prestressed against a force-guided movable component in such a way that in the non-actuated state it rests against the latter with a detent area.
Abstract: A vacuum manipulation device with a lifter hose, which can be connected to a vacuum-generating device, and with a suction gripper device, which can be placed on an object to be manipulated, by means of which the object can be drawn-up and, by contracting the lifter hose, can be lifted. In order to prevent the suction gripper device from snapping upward in case of an unintentional release of a drawn-up object, the manipulation device features a weight-actuable regulating element which, under the effect of the weight of an object drawn by suction against the suction side of the suction gripper device, blocks a flow cross section into the interior of the lifter hose, and unblocks it in the unoccupied state of the suction gripper device.
Type:
Grant
Filed:
April 13, 1999
Date of Patent:
March 21, 2000
Assignee:
J. Schmalz GmbH
Inventors:
Kurt Schmalz, Wolfgang Schmalz, Thomas Eisele
Abstract: The present invention relates to a vacuum handling apparatus, having a suction gripper device which can be connected by means of a lifting hose to a vacuum-creating device and can be placed upon an object, in order to suck up the object for lifting or conveyance. The apparatus has a control valve for controlling the vacuum prevailing in the interior of the suction gripper device and in the lifting hose, in order to lift or lower the suction gripper device with a sucked-up object or the empty suction gripper device, or to deposit a sucked-up object.
Abstract: A vacuum lift device comprising a lift tube which is able to contract and expand in an upward and downward direction, and a lift tube expansion control valve controlling the opening areas of the atmospheric openings of the lift tube. A hovering control valve controlling the flow area between the second atmospheric opening and the interior of the lift tube is provided. The lift tube expansion control valve is normally positioned at a position such that is completely covers the first atmospheric opening, and the second atmospheric opening is open to the outside space. At this time, the level of vacuum in the lift tube is adjusted by the hovering control valve so that an object to be lifted is maintained at a desired height.
Type:
Grant
Filed:
September 29, 1993
Date of Patent:
July 11, 1995
Assignees:
Kabushiki Kaisha Kito, J. Schmalz GmbH
Inventors:
Masayuki Ohno, Takayoshi Nakamura, Hiroshi Yamada, Kurt Schmalz, Wolfgang Schmalz