A multiple-antenna positioning system with a single drive element, providing reduced weight and complexity over systems that have a drive element for each antenna. In certain examples, each antenna can be coupled with a rotating spindle, with each antenna spindle being coupled with a pair of link arms. By driving a single drive spindle, each of the antenna spindles in the system can be rotated by the associated pair of link arms. The link arms can have an adjustable length, such as through a turnbuckle mechanism, to reduce backlash in the system, and in some examples can apply a preload to the system. By reducing backlash, the multiple antenna positioning system can have improved responsiveness to a rotation of the single drive element, as well as improved stability of the positioning of each antenna when the drive element is held in a fixed position.

A multiple-antenna positioning system with a single drive element, providing reduced weight and complexity over systems that have a drive element for each antenna. In certain examples, each antenna can be coupled with a rotating spindle, with each antenna spindle being coupled with a pair of link arms. By driving a single drive spindle, each of the antenna spindles in the system can be rotated by the associated pair of link arms. The link arms can have an adjustable length, such as through a turnbuckle mechanism, to reduce backlash in the system, and in some examples can apply a preload to the system. By reducing backlash, the multiple antenna positioning system can have improved responsiveness to a rotation of the single drive element, as well as improved stability of the positioning of each antenna when the drive element is held in a fixed position.

A multiple-antenna positioning system with a single drive element, providing reduced weight and complexity over systems that have a drive element for each antenna. In certain examples, each antenna can be coupled with a rotating spindle, with each antenna spindle being coupled with a pair of link arms. By driving a single drive spindle, each of the antenna spindles in the system can be rotated by the associated pair of link arms. The link arms can have an adjustable length, such as through a turnbuckle mechanism, to reduce backlash in the system, and in some examples can apply a preload to the system. By reducing backlash, the multiple antenna positioning system can have improved responsiveness to a rotation of the single drive element, as well as improved stability of the positioning of each antenna when the drive element is held in a fixed position.

A multiple-antenna positioning system with a single drive element, providing reduced weight and complexity over systems that have a drive element for each antenna. In certain examples, each antenna can be coupled with a rotating spindle, with each antenna spindle being coupled with a pair of link arms. By driving a single drive spindle, each of the antenna spindles in the system can be rotated by the associated pair of link arms. The link arms can have an adjustable length, such as through a turnbuckle mechanism, to reduce backlash in the system, and in some examples can apply a preload to the system. By reducing backlash, the multiple antenna positioning system can have improved responsiveness to a rotation of the single drive element, as well as improved stability of the positioning of each antenna when the drive element is held in a fixed position.

A multiple-antenna positioning system with a single drive element, providing reduced weight and complexity over systems that have a drive element for each antenna. In certain examples, each antenna can be coupled with a rotating spindle, with each antenna spindle being coupled with a pair of link arms. By driving a single drive spindle, each of the antenna spindles in the system can be rotated by the associated pair of link arms. The link arms can have an adjustable length, such as through a turnbuckle mechanism, to reduce backlash in the system, and in some examples can apply a preload to the system. By reducing backlash, the multiple antenna positioning system can have improved responsiveness to a rotation of the single drive element, as well as improved stability of the positioning of each antenna when the drive element is held in a fixed position.

A multiple-antenna positioning system with a single drive element, providing reduced weight and complexity over systems that have a drive element for each antenna. In certain examples, each antenna can be coupled with a rotating spindle, with each antenna spindle being coupled with a pair of link arms. By driving a single drive spindle, each of the antenna spindles in the system can be rotated by the associated pair of link arms. The link arms can have an adjustable length, such as through a turnbuckle mechanism, to reduce backlash in the system, and in some examples can apply a preload to the system. By reducing backlash, the multiple antenna positioning system can have improved responsiveness to a rotation of the single drive element, as well as improved stability of the positioning of each antenna when the drive element is held in a fixed position.

An embodiment of the present invention achieves a reduction in size of a movable structure for a device. A right link (6) is fixed to a rotary shaft (51) of a right motor (5). The right link (6) has a tip (61) which can slide in a sliding region (31). A portion of the tip (61) which can make contact with a connecting part (3) has a spherical shape. A left link (8) is fixed to a rotary shaft (71) of a left motor (7). The left link (8) has a tip (81) which can slide in a sliding region (32). A portion of the tip (81) which can make contact with the connecting part (3) has a spherical shape.

An embodiment of the present invention achieves a reduction in size of a movable structure for a device. A right link (6) is fixed to a rotary shaft (51) of a right motor (5). The right link (6) has a tip (61) which can slide in a sliding region (31). A portion of the tip (61) which can make contact with a connecting part (3) has a spherical shape. A left link (8) is fixed to a rotary shaft (71) of a left motor (7). The left link (8) has a tip (81) which can slide in a sliding region (32). A portion of the tip (81) which can make contact with the connecting part (3) has a spherical shape.

Techniques for antenna positioning system having a drive element shared by multiple antennas for positioning about a positioning degree of freedom are described. In some examples, each antenna can be coupled with a rotating spindle, with each antenna spindle being coupled with the shared drive element. By driving a shared drive element, each of the antenna spindles in the system can be rotated via the associated coupling. In some examples, such a coupling may include link arms with an adjustable length to reduce backlash or to apply a preload to the system. In some examples, such a coupling may be configured to position multiple antennas over different orientation ranges in response to the drive element driving over an actuation range, which may include one antenna being idled or otherwise maintained at an orientation while another antenna is driven, or may include different antennas being driven according to different actuation ratios.

The invention concerns a displacement mechanism (16) for a remotely operated vehicle (400,500,600,700), the displacement mechanism (16) being for raising and lowering wheels (25) onto a rail system (108) that the remotely operated vehicle (400,500,600,700) runs on. Furthermore, the invention concerns a remotely operated vehicle (400,500,600,700) comprising such a displacement mechanism (16), a method for raising and lowering the wheels of a remotely operated vehicle (400,500,600,700) comprising such a displacement mechanism (16) and an automated storage and retrieval system (1) comprising at least one remotely operated vehicle (400,500,600,700) comprising such a displacement mechanism (16).