Robot-actuated door-opening device for a draft shield enclosure of an analytical balance

摘要

A device (14) allows a door of a balance draft shield enclosure (12) to be activated by a carrier fork (4) of a robot (5). The vertically movable draft shield door (13) sets open an access opening in a raised position and closes the opening in a lowered position. A door-lifter with a force-application element (41) is connected to the draft shield door for application of an upward-directed vertical force. A transmitting mechanism (15), standing clear of the balance (11) includes a force-receiving element (20, 21, 26, 27) that is moved vertically by the carrier fork, between upper and lower end positions. It further includes at least one direction-reversing element (22, 23, 24, 25, 29), coupled to the force-receiving element for coupling to the force-application element, a return spring (28), and a spring-biased locking latch (30).

主权项

1. A device for operating a door of a draft shield enclosure of a balance, the door being movable vertically to provide access to the balance through an access opening in which a raised position of the door provides access and a lowered position of the door closes the access opening, the device mechanically actuated by a carrier fork of a robot, the device comprising:
a door-lifter, connected to the door, comprising a force-application element for applying an upward-directed vertical force to open the door; and a transmitting mechanism, standing clear of the balance, the mechanism comprising:
a force-receiving element that moves vertically between an upper end position and a lower end position through the action of the carrier fork;at least one direction-reversing element, coupled to the force-receiving element and arranged for coupling to the force-application element;a return spring, arranged to pull the force-receiving element into the upper end position; anda locking latch, biased by a spring to arrest the force-receiving element in the lower end position.