US 11,733,066 B2
Assembly having a rotary encoder and a tolerance ring
Stephan Mix, Marquartstein (DE); Sebastian Riepertinger, Soechtenau (DE); and Thomas Jaeger, Surtal (DE)
Assigned to DR. JOHANNES HEIDENHAIN GMBH, Traunreut (DE)
Filed by DR. JOHANNES HEIDENHAIN GmbH, Traunreut (DE)
Filed on Apr. 14, 2022, as Appl. No. 17/720,304.
Claims priority of application No. 21172372 (EP), filed on May 6, 2021.
Prior Publication US 2022/0357183 A1, Nov. 10, 2022
Int. Cl. G01D 5/20 (2006.01)
CPC G01D 5/20 (2013.01) 9 Claims
OG exemplary drawing
 
1. An assembly comprising:
a rotary encoder comprising a shaft to which a scale element is non-rotatably fixed, and a housing accommodating a scanning unit which is non-rotatably connected to the housing, wherein the shaft is disposed such that the shaft is rotatable relative to the housing about an axis, wherein the scale element is scannable by the scanning unit, and wherein the housing has an outer wall which has a first distance from the axis in a first section, and has a second distance from the axis in a second section, the first distance being greater than the second distance;
a tolerance ring; and
a body accommodating the rotary encoder and the tolerance ring, the body having an opening that is:
bounded radially with respect to the axis by a first inner wall, the first inner wall having a third distance from the axis in a third section, and having a fourth distance from the axis in a fourth section, the fourth distance being greater than the third distance, and
bounded by a second inner wall which forms an axial stop for the housing with respect to the axis, the fourth section being disposed in an axial direction between the second inner wall and the third section,
wherein the tolerance ring surrounds the housing and is positioned within the opening such that the tolerance ring is disposed radially between the first section and the fourth section and between the second section and the third section, and is radially clamped.