US 7,124,863 B2Granted

Brake mechanism for coupling two components

AssigneeZF Friedrichshafen AG

InventorMartin Münster

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Abstract

A brake assembly (1) for the coupling of two components, especially two stabilizer-halves of a motor vehicle stabilizer, with a brake housing (2), a motor shaft (3) penetrating through the brake housing (2), a magnet component (6) and an electrically connectable armature (9), rigidly connected with the brake housing (2) and the motor shaft (3). To assure a reasonable degree of security, provision is made that the magnet component (6) and the connectable armature (9) are longitudinally displaceably bound to the brake housing (2) and the motor shaft (3) and that, on the motor shaft (3), a spindle nut (5) is threadedly placed and that, in the event of a longitudinal displacement of the spindle nut (5) into axial end domains, respectively, the magnet component (6) or the armature (9) are so moved that a separative distance (d) between them is greater than the distance (d) is during mid-positioning and that the brake assembly (1) in both end positions of the spindle nut (5) are always closed and in the mid-position are open with or without application of electrical power.

Claims8

Dependent claims

A brake assembly for releasably coupling two components to one another, the brake assembly comprising:

at least one brake housing (2);
a motor shaft (3) extending axially through the brake housing (2);
an electromagnetic component (6) supported by the brake housing (2) and being longitudinally slidable with respect to the brake housing (2);
a frictional cone (9) supported by the motor shaft (3) and being axially displaceable therealong;
a spindle nut (5) threadedly mounted on the motor shaft (3) and is axially displaced along the motor shaft (3), the spindle nut (5) having a central position and being axially displaceable to a first end position in which at least the electromagnetic component (6) is also displaced with the spindle nut (5), and the spindle nut (5) being axially displaceable to a second end position in which at least the frictional cone (9) is also displaced with the spindle nut (5);
a separating distance (d) between the electromagnetic component (6) and the frictional cone (9), when the spindle nut (5) is in one of the first and the second end positions, is greater than the separating distance (d) between the electromagnetic component (6) and the frictional cone (9) when the spindle nut (5) is in the central position;
the brake assembly (1) is disengaged, regardless of whether or not electrical current is applied to the electromagnetic component (6), when the spindle nut (5) is in one of the first and the second end positions;
and
the brake assembly (1) is engaged, whether or not electrical current is applied to the electromagnetic component (6), when the spindle nut (5) is in its central position, and the brake assembly (1) is disengaged when electrical current is applied to the electromagnetic component (6).

6 more elements

Dependencies are inferred from the claim text.