Spring plate
First Claim
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1. A spring plate for supporting a helical spring having a final turn with a radially inner contour and a radially outer contour, the spring plate comprising:
- an axial support surface which contacts the final turn of the helical spring; and
a plurality of discrete centering surfaces for centering the final turn on the axial support surface, the centering surfaces comprising at least one centering surface positioned to contact said inner contour and at least one curved centering surface positioned to contact said outer contour, wherein the centering surfaces are circumferentially offset from each other and are positioned to contact the final turn of the helical spring along respective separate circumferential extents of the final turn, wherein free spaces between the centering surfaces allow for compensation of deviations from an ideal shape of the final turn of the spring.
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Abstract
A spring plate, especially for a MacPherson strut unit, having an axial support surface for the final turn of a helical spring. The helical spring is centered by radial centering surfaces in the area of the circumferential contour of the final turn. The centering surface is divided into individual, partial centering surfaces, which come to rest against the circumferential contour of the helical spring.
10 Citations
10 Claims
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1. A spring plate for supporting a helical spring having a final turn with a radially inner contour and a radially outer contour, the spring plate comprising:
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an axial support surface which contacts the final turn of the helical spring; and a plurality of discrete centering surfaces for centering the final turn on the axial support surface, the centering surfaces comprising at least one centering surface positioned to contact said inner contour and at least one curved centering surface positioned to contact said outer contour, wherein the centering surfaces are circumferentially offset from each other and are positioned to contact the final turn of the helical spring along respective separate circumferential extents of the final turn, wherein free spaces between the centering surfaces allow for compensation of deviations from an ideal shape of the final turn of the spring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification
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Current AssigneeZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
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Original AssigneeZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
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InventorsDeigner, Bruno, Handke, Gnther, Hassmann, Frank, Miller, Alexander, Renn, Josef, Schuler, Manfred, Stretz, Klaus, Zietsch, Andreas, Zimmermann, Gottfried, Hermes, Jrg, Koberstein, Joachim, Pagel, Jrg
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Primary Examiner(s)Irvin, Thomas
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Assistant Examiner(s)Rashid, Mahbubur
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Application NumberUS11/225,278Publication NumberTime in Patent Office3,395 DaysField of Search267/221, 267/170, 267/179US Class Current267/179CPC Class CodesB60G 15/063 characterised by the mounti...B60G 2202/312 The spring being a wound sp...B60G 2204/1242 on a damper, e.g. MacPerson...B60G 2204/12422 anchoring the end coils on ...B60G 2204/44 Centering or positioning meansF16F 9/3207 Constructional features F16...
