Brake device

A brake device, comprising:

• a brake unit;
• a contact device engageable by the brake unit and rotatable relative to the brake unit about a center brake unit axis,
• wherein the brake unit includes at least one activation device rotatable about the center brake unit axis and including an eccentrical activation profile centrally arranged in the brake unit, and at least one brake member that includes a transmission member and a brake shoe that is pivotably supported in a brake shoe pivot bearing at an end of the at least one brake member so that substantially radially outward oriented forces relative to a center rotation axis of the at least one rotatable activation device and the center brake unit axis are transferable directly from the eccentrical activation profile of the at least one activation device to a roller radially displaceable by a rotation of the eccentrical activation profile and rotatably supported at the at least one brake member, wherein the radially outward oriented forces cause the brake shoe to engage the contact device,
• wherein the at least one activation device engages the transmission member to move the at least one brake member from an idle position towards the contact device until the brake shoe contacts the contact device in an activation position of the at least one brake member and the brake shoe,
• wherein the brake shoe pivot bearing is arranged at the at least one brake member so that the brake shoe pivot bearing is movable towards the contact device together with the transmission member,
• wherein the brake shoe is actuated from the activation position into a braking position by a transversal force imparted upon the brake shoe by the contact device wherein the transversal force acts transversal to a direction of actuation of the brake shoe pivot bearing from the idle position into the activation position, wherein the brake shoe is arranged at an end of the brake shoe pivot bearing so that a torque at the contact device and a force that acts upon the brake shoe in a direction of rotation of the contact device cause a brake shoe torque at the brake shoe and a pivoting of the brake shoe about the brake shoe pivot bearing from the activation position into the braking position, so that brake torque is transferred from the contact device to the brake unit in the braking position and no brake torque is transferred from the contact device to the brake unit in the activation position.

A brake device a brake of a wheelchair or a coupling or a brake of stationary machinery or externally propelled movable equipment, the brake device comprising:

• a brake unit;
• a contact device engageable by the brake unit and rotatable relative to the brake unit about a center brake unit axis,
• wherein the brake unit includes at least one activation device rotatable about the center brake unit axis and including an eccentrical activation profile centrally arranged in the brake unit, and at least one brake member that includes a transmission member and a brake shoe that is pivotably supported in a brake shoe pivot bearing at an end of the at least one brake member so that substantially radially outward oriented forces relative to a center rotation axis of the at least one rotatable activation device and the center brake unit axis are transferable directly from the eccentrical activation profile of the at least one activation device to a roller radially displaceable by a rotation of the eccentrical activation profile and rotatably supported at the at least one brake member, wherein the radially outward oriented forces cause the brake shoe to engage the contact device,
• wherein the at least one activation device engages the transmission member to move the at least one brake member from an idle position towards the contact device until the brake shoe contacts the contact device in an activation position of the at least one brake member and the brake shoe,
• wherein the brake shoe pivot bearing is arranged at the at least one brake member so that the brake shoe pivot bearing is movable towards the contact device together with the transmission member,
• wherein the brake shoe is actuated from the activation position into a braking position by a transversal force imparted upon the brake shoe by the contact device wherein the transversal force acts transversal to a direction of actuation of the brake shoe pivot bearing from the idle position into the activation position, wherein the brake shoe is arranged at an end of the brake shoe pivot bearing so that a torque at the contact device and a force that acts upon the brake shoe in a direction of rotation of the contact device cause a brake shoe torque at the brake shoe and a pivoting of the brake shoe about the brake shoe pivot bearing from the activation position into the braking position, so that brake torque is transferred from the contact device to the brake unit in the braking position and no brake torque is transferred from the contact device to the brake unit in the activation position.