Patent ID: 11883885
Assignee: SCHOTT PHARMA SCHWEIZ AG
Field: Machine tools (Mechanical engineering)
Classification: CPC B  C  Y | IPC B  C

Claim 0:
1. A retention chuck for glass pipes, comprising:
a central supply channel being configured to pass the glass pipes through the central supply channel, the central supply channel having an opening at a lower end and a center line;
a plurality of clamping jaws arranged around the opening at the lower end and distributed around the center line, wherein the plurality of clamping jaws have a spacing from the center line that is adjustable;
an actuation element configured for common adjustment of the spacing of all of the plurality of clamping jaws;
a coupling element that couples the plurality of clamping jaws to the actuation element, the coupling element comprises a plurality of levers, each lever being connected in an articulated manner to the actuation element and to a respective one of the plurality of clamping jaws, wherein each lever comprises a first leg angled with respect to a second leg, wherein the first leg is connected to the actuation element in an articulated manner and the second leg is connected to the respective one of the plurality of clamping jaws in an articulated manner, wherein the first leg has a pin that is slidingly movably guided in a groove in the actuation element, wherein the second leg has a pin that is slidingly movably guided in a groove of the respective one of the plurality of clamping jaws, wherein the actuation element further comprises guiding arms in which the grooves in the actuation element are formed, and wherein the guiding arms protrude radially outward from the actuation element; and
a guiding sleeve associated with and containing one each of the plurality of clamping jaws, the guiding sleeve guiding the common adjustment of each of the plurality of clamping jaws, respectively, perpendicularly, radially inwardly relative to the center line, wherein each of the clamping jaws is slidingly moveable within the associated guiding sleeve.