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US 8,475,307 B2Granted
Tensioning rail for a chain drive with a bridging guide channel section as a pressing region
AssigneeIwis Motorsysteme GmbH & Co. KG
InventorsMartin Bodensteiner, Sandra Ketterl, Artur Preis, Michael Weikert
Life of this patent
Estimating the term…
Abstract
The invention relates to a tensioning rail for a chain drive with a support body which is pivotable about a center of rotation and which has a guide channel, which can be placed in contact with a chain, and a pressing region which can be acted on with pressure by a tensioning piston, wherein the pressing region bridges the guide channel at least in regions by forming a peripherally closed guide channel section, wherein the pressing region is formed in one piece with the support body.
Claims19
A chain drive, comprising:
- a chain;
- and
- a tensioning rail, the tensioning rail comprising:
- a support body that is pivotable about a center of rotation and has a guide channel that slidably accepts the chain therein;
- a projection connected to the support body and formed by at least two spaced-apart webs, the at least two spaced-apart webs being connected to the support body and disposed on opposing sides of the guide channel such that the chain passes between the two spaced-apart webs;
- and
- a pressing region, which is adapted to be acted on with pressure by a tensioning piston, the pressing region being connected to the at least two spaced-apart webs such that the pressing region bridges the chain along at least a portion of the guide channel to define an enclosed guide channel section that surrounds the chain, wherein the chain extends through the enclosed guide section, and
- wherein the guide channel of the support body and the projection enclose the chain on four sides at least along a portion of the guide channel, and
- wherein the pressing region is formed in one piece with the support body such that the chain is threaded in an open state through the enclosed guide channel when the chain is assembled with the tensioning rail.
6 more elements
A tensioning rail for a chain drive, comprising:
- a support body that is pivotable about a center of rotation and that includes:
- a guide channel that is adapted to slidably accept a chain therewithin,
- a projection formed by at least two spaced-apart webs, the at least two spaced-apart webs being disposed on opposing sides of the guide channel such that the chain passes between the two spaced-apart webs;
- and
- a pressing region, which is adapted to be acted on with pressure by a tensioning piston, the pressing region being connected to the at least two spaced-apart webs such that the pressing region bridges the chain at least along a portion of the guide channel to define a peripherally enclosed guide channel section that surrounds the chain;
- wherein the chain extends through the peripherally enclosed guide channel section, and wherein the guide channel and the projection enclose the chain on four sides along the peripherally enclosed guide channel section such that the chain must be threaded in an opened state through the enclosed guide channel when the chain is assembled with the tensioning rail.
3 more elements
Dependencies are inferred from the claim text.