Control arrangement for access member, and access member system
A control arrangement ( 20 ) for controlling movements of an access member ( 14 ), the control arrangement comprising a base structure ( 22 ); a drive member ( 32 ) rotatable about a rotation axis ( 28 ); an input member ( 38 ) arranged to be driven along an actuation axis ( 40 ) by rotation of the drive member, and arranged to move in a lateral direction ( 74, 76 ); an output member ( 50 ) arranged to be driven by the input member along the actuation axis; an electromagnetic generator ( 58 ) arranged to be driven by movement of the output member along the actuation axis to generate electric energy; and a force transmitting arrangement ( 42, 52; 116 ) arranged to transmit a relative movement between the input member and the output member along the actuation axis to a movement of the input member in the lateral direction towards the base structure for frictional braking between the input member and the base structure.
1 . A control arrangement for controlling movements of an access member relative to a frame, the control arrangement comprising:
a base structure;
a drive member rotatable relative to the base structure about a rotation axis;
an input member arranged to be driven relative to the base structure along an actuation axis by rotation of the drive member about the rotation axis, and arranged to move in a lateral direction with respect to the actuation axis relative to the base structure;
an output member arranged to be driven by the input member relative to the base structure along the actuation axis;
an electromagnetic generator arranged to be driven by movement of the output member along the actuation axis to generate electric energy; and
a force transmitting arrangement arranged to transmit a relative movement between the input member and the output member along the actuation axis to a movement of the input member in the lateral direction towards the base structure for frictional braking between the input member and the base structure.
2 . The control arrangement according to claim 1 , wherein the force transmitting arrangement comprises an inclined surface, inclined relative to the actuation axis.
3 . The control arrangement according to claim 2 , wherein the inclined surface is inclined between 10 degrees to 40 degrees, inclusive, with respect to the actuation axis.
4 . The control arrangement according to claim 2 , further comprising one or more rollers arranged to engage the inclined surface.
5 . The control arrangement according to claim 1 , wherein the input member is movable along the actuation axis in an opening direction and in a closing direction, opposite to the opening direction.
6 . The control arrangement according to claim 5 , wherein the input member is arranged to push the output member in the closing direction.
7 . The control arrangement according to claim 5 , wherein the input member is arranged to pull the output member in the opening direction.
8 . The control arrangement according to claim 7 , wherein the input member comprises an input pulling surface and the output member comprises an output pulling surface, and wherein the input member is arranged to pull the output member in the opening direction by contact between the input pulling surface and the output pulling surface.
9 . The control arrangement according to claim 8 , wherein the input pulling surface and the output pulling surface are substantially perpendicular to the actuation axis.
10 . The control arrangement according to claim 1 , further comprising a connection device for connection between the access member and the frame, wherein a part of the connection device is fixed to the drive member for common rotation about the rotation axis.
11 . The control arrangement according to claim 1 , further comprising a closing force device arranged to force rotation of the drive member about the rotation axis to thereby force movement of the input member along the actuation axis.
12 . The control arrangement according to claim 1 , further comprising a generator wheel arranged to be rotationally driven by movement of the output member along the actuation axis, and a speed increasing generator transmission arranged to transmit a rotation of the generator wheel to a rotation of a rotor of the generator.
13 . The control arrangement according to claim 1 , wherein the input member and the output member are made of different types of materials.
14 . The control arrangement according to claim 1 , further comprising a release force device arranged to force the input member and the output member away from each other along the actuation axis.
15 . An access member system comprising the frame, the access member movable relative to the frame, and the control arrangement according to claim 1 .