US 11,998,928 B2
Roller groups for grinding devices, grinding devices, and methods
Philippe Holenstein, Henau (CH); Lukas Studerus, Niederuzwil (CH); Daniel Rickenbach, Wittenwil (CH); Daniel Mark, Wil (CH); and Heribert Weber, Arbon (CH)
Assigned to Bühler AG, Uzwil (CH)
Filed by BÜHLER AG, Uzwil (CH)
Filed on Mar. 4, 2022, as Appl. No. 17/686,541.
Application 17/686,541 is a continuation of application No. 17/058,892, granted, now 11,266,993, previously published as PCT/EP2019/063716, filed on May 28, 2019.
Claims priority of application No. 18174570 (EP), filed on May 28, 2018.
Prior Publication US 2022/0184627 A1, Jun. 16, 2022
Int. Cl. B02C 4/06 (2006.01); B02C 4/38 (2006.01)
CPC B02C 4/06 (2013.01) [B02C 4/38 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A roll assembly (10) for a milling apparatus (70), comprising a first roll (11) and a second roll (12), as well as a handwheel (21) which can be rotated about a handwheel axis of rotation (H) and by means of which a milling gap formed between the first roll (11) and the second roll (12) is adjustable, wherein
the roll assembly (10) has a position indicator (26) for indicating a position of the handwheel (21), and the position indicator (26) comprises a position indicator housing (27) and an indicator element (28) which is movable along the handwheel axis of rotation (H) relative to the position indicator housing (27) and which is pretensioned by a position indicator spring (29) in the direction of the handwheel axis of rotation (H) with respect to the position indicator housing (27) in such a way that it can be rotated about the handwheel axis of rotation (H) only upon overcoming the pretensioning brought about by the position indicator spring (29).