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US 9,869,358 B2Granted
Brake shoe for a drum brake
AssigneeSAF-HOLLAND GmbH
InventorsStefan Wallmeier, Michael Roos
Life of this patent
Estimating the term…
Abstract
The invention relates to a brake shoe for a drum brake and a drum brake that includes a supporting unit and a lining unit, wherein the supporting unit comprises a bearing portion for pivotable support and an actuation portion, and wherein the supporting unit has a bending stiffness, which has different values between the bearing portion and the actuation portion.
Claims10
A brake shoe for a drum brake, comprising:
- a supporting unit, which comprises a bearing portion for pivotable support, an actuation portion, a first supporting portion adjacent the bearing portion and a second supporting portion adjacent the actuation portion;
- and
- a lining unit having a first lining portion and a second lining portion where a majority of the first lining portion is positioned adjacent the first supporting portion and a majority of the second lining portion is positioned adjacent the second supporting portion;
- wherein the supporting unit has a bending stiffness that increases from the bearing portion toward the actuation portion such that the second supporting portion has a greater bending stiffness than the first support portion;
- wherein the first and second supporting portions of the supporting unit comprise a web plate and a lining plate, wherein the at least one of the web plate and the lining plate of the first and second supporting portions has at least one of a cross-section area and a surface which increases from the bearing portion towards the actuation portion;
- and
- wherein when an actuation force smaller than a limiting force is applied to the actuation portion the lining unit shows a braking effect in the first lining portion only, and when an actuation force larger than the limiting force is applied the lining unit shows a braking effect also in the second lining portion.
4 more elements
Dependencies are inferred from the claim text.