Pan-tilt device that reduces backlash effects
An apparatus includes a motor having one or more gears and a shaft operably coupled to the one or more gears. The shaft actuates to adjust a field of view (FoV) of a camera. The apparatus further includes a bracket having a passage in which the shaft is at least partially disposed, and a channel. A spring is at least partially disposed with the channel of the bracket and is configured to reduce a backlash within the one or more gears of the motor.
1 . A stand comprising:
a first portion; and
a second portion including:
a bracket at least partially disposed within the second portion, the bracket having a channel,
a neck at least partially disposed within the second portion, the neck having a first end coupled to the bracket and a second end coupled to a device,
a first motor at least partially disposed with the second portion,
a second motor at least partially disposed within the second portion, the second motor having:
a housing, and
a shaft coupled to the bracket, and
a spring having a first end coupled to the housing of the second motor and a second end operably coupled to the bracket, the spring being at least partially disposed within the channel and configured to at least partially reduce a backlash of gears within the second motor.
2 . The stand of claim 1 , wherein:
the first motor adjusts a pan of the device; and
the second motor adjusts a tilt of the device.
3 . The stand of claim 1 , wherein:
the first portion is configured to remain stationary during panning of the device; and
the second portion is configured to rotate during panning of the device.
4 . The stand of claim 1 , further comprising:
one or more processors; and
one or more non-transitory computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform acts comprising:
receiving a signal associated with actuating at least one of the first motor or the second motor, and
causing, based at least in part on the signal, the at least one of the first motor or the second motor to actuate.
5 . The stand of claim 1 , wherein:
the housing includes a flange having an opening;
the first end is disposed at least partially within the opening of the housing;
the second end disposed at least partially within a notch of the bracket, the notch being connected to the channel; and
the spring includes a loop disposed proximate to the first end of the spring, the spring being at least partially disposed around the flange of the housing.
6 . A device comprising:
a mount for coupling to an electronic device having a camera;
a first motor configured to actuate in a first direction for adjusting a field of view (FoV) of the camera;
a second motor configured to actuate in a second direction, different than the first direction, for adjusting the FoV of the camera;
a bracket coupled to the second motor and the mount; and
a spring at least partially disposed within the bracket and configured to reduce a backlash within one or more gears of the second motor.
7 . The device of claim 6 , wherein:
the first motor is configured to adjust a pan of the device; and
the second motor is configured to adjust a tilt of the device.
8 . The device of claim 6 , wherein:
the second motor includes a housing; and
the spring at least partially couples to the housing.
9 . The device of claim 8 , wherein:
the housing includes a flange having an opening; and
the spring includes:
a first end disposed in the opening for coupling the spring to the housing; and
a second end configured to rotate during actuation of the second motor.
10 . The device of claim 6 , wherein:
the bracket defines a channel; and
one or more coils of the spring are disposed within the channel.
11 . The device of claim 6 , wherein:
the second motor includes a shaft having a rotational axis;
rotation of the shaft in a first direction via actuation of the second motor causes the spring to generate a first force in a second direction that is opposite the first direction; and
rotation of the shaft in a third direction via actuation of the second motor causes the spring to generate a second force in a fourth direction that is opposite the third direction.
12 . The device of claim 6 , further comprising:
one or more processors; and
one or more non-transitory computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform acts comprising:
receiving a signal associated with actuating at least one of the first motor or the second motor, and
causing, based at least in part on the signal, the at least one of the first motor or the second motor to actuate.
13 . The device of claim 6 , wherein:
the first motor has a first rotational axis; and
the second motor has a second rotational axis that is orthogonal to the first rotational axis.
14 . The device of claim 6 , further comprising:
a first housing; and
a second housing defining a slot in which the mount is configured to translate, wherein the second housing is configured to rotate relative to the first housing.
15 . An apparatus comprising:
a motor including:
one or more gears, and
a shaft operably coupled to the one or more gears, the shaft being configured to actuate to adjust a field of view (FoV) of a camera;
a bracket including:
a passage in which the shaft is at least partially disposed, and
a channel; and
a spring at least partially disposed with the channel of the bracket, the spring being configured to reduce a backlash within the one or more gears of the motor.
16 . The apparatus of claim 15 , wherein:
the motor includes a housing;
the spring includes:
a first end coupled to the housing,
a second end opposite the first end, and
one or more coils disposed between the first end and the second end;
the bracket includes a notch connected to the channel;
the one or more coils are at least partially disposed within the channel; and
the second end is at least partially disposed within the notch.
17 . The apparatus of claim 16 , wherein:
the housing includes a flange having an opening;
the first end of the spring is at least partially disposed within the opening; and
the spring includes a loop that is at least partially disposed around the flange.
18 . The apparatus of claim 15 , further comprising a second motor including a second shaft, the second shaft being configured to actuate to adjust the FoV of the camera.
19 . The apparatus of claim 18 , wherein:
the shaft is configured to actuate in a first direction to adjust the FoV of the camera; and
the second shaft is configured to actuate in a second direction, different than the first direction, to adjust the FoV of the camera.
20 . The apparatus of claim 15 , wherein the bracket couples to an electronic device including the camera.